Articles, Blog

DermTV – The Difference Between Canker Sores and Herpes [ Epi #103]

October 19, 2019

Hello, I’m Dr. Neal Schultz [pause] and welcome to DermTV. When we get sores inside our mouth or on our
lips, usually they’re very painful. And almost all of them are caused
by one of two things—either a herpes virus outbreak or canker sores, and
I find that not only do most people get them confused, but can you believe
this, most doctors get them confused also. So let’s talk about it. Canker sores are not contagious. They’re
very painful, especially when you’re eating and food touches the area
where you have the canker sore. Canker sores occur almost exclusively inside
you mouth, not outside, not on your outer lip, and not on your chin. And
when they occur inside your mouth, which can be on this part of the skin
or seen inside the cheeks, you see a gray or tan, round area with a bright
red rim right around it. They go away in a couple of days and they’re
easily treated with topical antibiotics. Usually, we take tetracycline,
open a capsule, put it in a little glass of water, and take just a piece
of cotton, dip it in that water, and hold it against the canker sore
for a few minutes and, after 2 of 3 days, it will go away. This is very,
very different from herpes outbreaks. Herpes outbreaks usually are not
that painful although right before you get them, you feel a tingling or
a burning in the skin where you’re going to get the outbreak. They are
very contagious. They usually don’t occur inside your mouth, they occur
outside your mouth. They can be right on the lip, on the edge of the lip,
or around the mouth, or really any place on your face. And when they happen,
usually they occur with blisters, and those blisters are often clustered
together and with a red ear around it but not a red, sharp rim like
you see with a canker sore. Over a period of a couple of days, they dry
and crust and scab. They’re very easy to treat. They’re treated with
oral medication, oral medication for only a day may become not contagious by
the second or third day. If you’re getting sore inside your mouth or
around your mouth or on your lips, and you’re not sure what it is and you don’t
know how to treat it, see your dermatologist who can give you some medicine
to make sure that the sores go away faster and you become comfortable much


  • Reply Sara Fishfly October 18, 2012 at 4:36 am

    so are you ok now

  • Reply Sara Fishfly October 18, 2012 at 4:36 am


  • Reply jack williams October 18, 2012 at 6:25 pm

    my little sister gets them inside her check

  • Reply WINH4X November 2, 2012 at 12:38 am

    I thought the thumbnail was never mind.

  • Reply pumpsnheels521 November 6, 2012 at 12:26 pm

    Thanks for this helpful video.

  • Reply JLVKSON November 25, 2012 at 4:03 am

    i took a pin and stuck it in my tongue… then i watched this. my tongue is bleeding so much.

  • Reply dare kane November 27, 2012 at 1:04 pm

    o thank you baby jesus its only a canker sore lmao i was shook

  • Reply Sal Sabino November 29, 2012 at 7:18 am

    Why is it when i get a cut in my mouth it easily turns into a canker sore?? And is hydrogen peroxide safe to clean them with/ treat?

  • Reply Kiba December 3, 2012 at 2:41 pm

    I got a big canker sore on the inside of my lip. how do they happen?

  • Reply Ethan D. December 5, 2012 at 5:12 am

    Well everyone you wonder what causes canker sores. Keeping good oral hygiene

  • Reply Tman1052 December 12, 2012 at 5:06 am

    I get fucking cankersores every fucking week, ill bite my damn tongue and there you go, I got 3 🙁

  • Reply Evan January 10, 2013 at 2:44 am

    Get some good mouthwash

  • Reply Turtlesarecoolbutithinkwalrusesarebetterthananythingialsolikeflowersbecausetheyneverusethekword January 25, 2013 at 6:26 am

    I get about 2 canker sores per week, right now I have 2 under my tongue , and one right where I chew my food, and every time I eat the 2 under my tongue hurt amazingly bad.

  • Reply CECE 4MAN January 31, 2013 at 2:14 pm

    Thank you for your videos you have a very pleasent way of describing certain ailments. I wish i had descent insurance so i could be a patient of yours….
    Thanks again Maria

  • Reply ToostieRollz February 6, 2013 at 9:32 pm

    sounds like you may be allergic to something that's causing your canker sore

  • Reply Mikeala Goodwin February 21, 2013 at 6:48 pm

    i always get canker sores after i drink soda

  • Reply Blueblood Warrior February 25, 2013 at 1:34 pm

    once i had two cankersores at a time one in my cheek and the other by my bottom gums……it was so painful to eat glad there gone now

  • Reply hindo rob February 26, 2013 at 11:44 pm

    My cousin dated Jarred Fogle from Subway, she left that relationship with genital warts, as well as HPV in her throat. Damn you Jarred Fogle!!

  • Reply t12zzl March 20, 2013 at 4:57 am

    I get canker sores more often than most people.. I find that really keeping my mouth clean, brushing, flossing, and using mouthwash will really help to make them go away faster. The mouthwash also seems to alleviate the pain for a small period of time.

  • Reply anna hope March 26, 2013 at 5:05 pm

    Same here Bob. Viradux-coldsore is by for the best treatment on the market. So nice to be able to go outside and not feel like a monster.

  • Reply Jonny Walker 447 April 29, 2013 at 7:40 pm

    I was scared I had herpes. I had sex last weekend with a chick I meet that night. So she obviously does it a lot. Here I am with sores all over my mouth. Shit hurts like crazy. I can't eat a fucking thing

  • Reply Jonny Walker 447 April 29, 2013 at 7:42 pm

    I dropped from 144 pounds to 139 already. Since Friday 🙁

  • Reply Jonny Walker 447 May 4, 2013 at 1:51 pm

    I had strep throat. And I still do

  • Reply adamp2574 May 12, 2013 at 4:43 am

    I am no doctor but I think you have aids.

  • Reply Jonny Walker 447 May 12, 2013 at 4:39 pm

    it was strep

  • Reply Jesus' Faith May 16, 2013 at 4:29 am

    The non prescription way to kill a Kanker sore is Listerene. Force it into the sore and hold it there. May have to repeat a few times. It burns like heck but it'll kill it. For a script I get from the skin doc or my dentist, I use Treamcinolone Acetonide nick name is easier, "dental paste". It works fast!

  • Reply Megan Hammond June 5, 2013 at 7:54 pm

    Try Aciclovir, a prescription anti-viral for cold sores, works a treat.

  • Reply Barack Lasagna June 16, 2013 at 10:36 am

    you touched your saliva?

  • Reply Joseph Marlys September 12, 2013 at 2:01 pm

    Can you advise getting the vaccine?

  • Reply mocabe gamer September 19, 2013 at 6:47 pm

    videos would really be better if you could show samples

  • Reply Bobbi Ashley October 14, 2013 at 6:39 am

    Thanks for this video. My 2 year son just got a mouth full of canker sores after running a temp and hasn't been able to eat well for almost 3 days now. I took him to an urgent care Dr.yesterday and he was clearly misdiagnosed. They are treating him for Strep (no results from test). I am wondering if Omnicef (liquid) will help these go away like the tetracycline? This is the antibiotic they gave me.

  • Reply Vee Beth Herrera November 12, 2013 at 3:01 am

    I only get them every few years (Canker sore) and they hurt so bad!! I put Listerine directly on it which will numb it and help it heal. Hurts with food. 

  • Reply Nano Eye November 16, 2013 at 5:44 pm

    40-80% alcohol drinks helps best way!

  • Reply Darwin Xavier November 25, 2013 at 2:39 am

    I get them and have them for weeks sometimes. I guess they're canker sores since I've never had sex.

  • Reply amal alqahtani December 3, 2013 at 11:34 pm

    I couldn't eat for two days

  • Reply Jenny B January 20, 2014 at 5:14 am

    I get very large cankersores but it is a sign of Lupus which I have it is not just one sign of Lupus but it accompanies other conditions.

  • Reply L Gee January 28, 2014 at 4:37 pm

    Monica, yes you can have a herpes inside your mouth…

  • Reply Isabell Rose February 7, 2014 at 8:57 pm

    Hey let me increase your education. For those of you who don't know, THERE ARE DIFFERENT HERPES. The one in this video isn't from having sex. You can easily get them from kissing, sharing drinks, lip balm, etc. you're thinking of genital herpes, which is completely different. YES YOU CAN GET MOUTH HERPES AND BE A VIRGIN. It's a form of herpes but no it is not an std. If you have ever heard of a cold sore, that's herpes. It's not bad. You don't need to worry thinking you slept with the wrong person and they gave you herpes. Increase your education people

  • Reply adam noraizad February 16, 2014 at 10:22 am

    Canker burns the shit out of ur tounge/lips/cheeks

  • Reply Dibya Subba March 12, 2014 at 3:11 pm

    thank u doctor for providing us knowledge.

  • Reply zestydude87 April 23, 2014 at 5:01 am

    I used to get canker sores all the time as a teen and in my 20s.  Then i stopped getting them and havent had one in probably 10 years or so.

  • Reply Stormspark May 14, 2014 at 10:02 am

    "Cold sore" is a common term for a herpes blister.  However, growing up, my parents called canker sores, cold sores.  They didn't know the difference either.  I get canker sores infrequently (silver nitrate caustic pencils are awesome for these) but have never had a cold sore/herpes blister.

  • Reply Brianna Hernandez August 12, 2014 at 11:23 pm

    I have a really bad blister and it ITCHES!! and it also hurts!! what can I do??
    (it is whiteish yellowish)

  • Reply Brianna Hernandez August 12, 2014 at 11:24 pm

    they also tried to put medicin but it did not work!!

  • Reply evelyn espinoza October 27, 2014 at 3:02 am

    Doc what if your 10

  • Reply Mike Perdue November 13, 2014 at 4:30 pm

    What about if u have on lips and your lips are big

  • Reply Wahi Matit December 8, 2014 at 9:04 am

    Diet program is the key component of treating herpes. Choosing the right food stuff can stop the future outbreak and keep you protected from troublesome itchy feeling.

  • Reply Phil Dog December 17, 2014 at 4:35 pm

    This is comforting. Some asshole told me a long time ago I had herps when I mentioned that I get sores in my mouth when my sleeping pattern get's way to irregular. It's just cankers.

  • Reply Patricia Francis December 26, 2014 at 12:14 am

    thank you  I've been a RN for many years and have always been told by doctors that what I or sometimes a client would have in their mouth  (usually a single sore) was herpes but now I know better

  • Reply N.A.L j December 29, 2014 at 12:38 pm

    Aaww thank god! I gave my bf oral and then i read on the internet that herpes can appear inside the mouth, and i recently tested negative for both hsv1&2. I freaked out that i could pass the ulcer to my bf genitals. Its just a cancker sore. Thank u thank u thank you!

  • Reply Mr. Ravioli April 4, 2015 at 5:08 am

    I have a question and it's been scaring me for a while. I found online that if you pop a pimple on a certain part of your face you have a chance of dying. It's called the danger triangle and it starts from the top of your nose and stops at your mouth. So is this true?

  • Reply ღ Mistress Animeღ ツ May 2, 2015 at 2:10 pm

    Thank you so much

  • Reply Meh August 20, 2015 at 7:10 am

    ayo guys i sucked on a gurls nipps last night and now theres a mini zit on the tip of my tongue and im worried its herpies, when i smoke my blunt it burns a bit is it herpies?

  • Reply Kaisar Hasan February 6, 2016 at 5:57 pm

    Not certain about the points made but ,if anyone else wants to uncover home remedy cold sore try Jaffacter Cold Sore Coach (just google it ) ? Ive heard some great things about it and my m8 got amazing success with it.

  • Reply laks san February 20, 2016 at 7:31 am

    hi everyone ,if anyone else needs to find out about natural treatment cold sores try Alkarno Cold Sore Alchemist (do a search on google ) ? Ive heard some interesting things about it and my neighbor got amazing results with it.

  • Reply Luis Loyola February 21, 2016 at 8:40 am

    i have some small bump under the tounge i did orql sex i dont know if its an infection or something like that can someone help me?

  • Reply Alaa El Aifa March 14, 2016 at 1:57 pm

    which one one can cause fever Canker Sores or Herpes or both
    because i have inside my mouth like Canker Soresbut also i have fever

  • Reply kim_jung95 April 29, 2016 at 11:49 am

    So Herpes really can't happen inside the mouth? Am I Right?

  • Reply CaptainKaiju May 12, 2016 at 10:37 pm

    Can canker sores happen on the tongue?

  • Reply Matsu Kuruzu May 15, 2016 at 9:45 pm

    Long time ago i got does in my tough i cant even talk or eat..

  • Reply pilotpig May 29, 2016 at 12:00 am

    how do I know of its herpes or canker sore

  • Reply Hannah perez-hope June 10, 2016 at 2:57 am

    can you get sores on your gums?

  • Reply Madison Eazy July 21, 2016 at 11:30 am

    I have little tiny bumps on the tip of my tongue that kind of burn when I drink hot liquid . cold makes them feel better . there's also a couple bigger bumps that are more painful to touch . I've been using antiseptic mouthwash and brushing my teeth 3 times a day everyday and I still have them & have had them for atleast a week . any ideas on what it could be ?

  • Reply sports talk September 5, 2016 at 6:11 am

    can canker sores happen on the roof of the mouth

  • Reply MrSuperdragonfist September 9, 2016 at 7:51 pm

    is there a way herpes can only appear on tongue tip? like a sore but only on the tip of a tongue?

  • Reply Ana Guzman September 13, 2016 at 4:27 pm

    i went to the doctor for canker sores n they didnt give me anything…

  • Reply dave_smooth_ November 2, 2016 at 7:07 pm

    phew this is why I never share with people lol, I see people sharing water and girls sharing lipstick, My mom told me since i was entering pre k to never share fluids or kiss,

  • Reply Gimme yo wonton big boi December 3, 2016 at 8:47 pm

    i have sores on the tip of my tounge. what do i have plz respond soon they hurt

  • Reply 231MasseyFerguson December 31, 2016 at 3:15 am

    I like that Ford 8N tractor

  • Reply Asian Albert January 26, 2017 at 12:46 am

    first i have herpes outbreak now canker sorse

  • Reply BeautyByEvie? February 8, 2017 at 7:16 am

    So then how do U get them if they aren't contagious

  • Reply MIchael Harrington March 8, 2017 at 9:19 pm

    If it is herpes, go to the doctor. But for all other penis skin issues, use a creme called Man1 Man Oil. It is made just for the penis skin and will keep it moisturized, clean and irritation-free if you use it once a day. It is an awesome product. Check it out.

  • Reply jan bijak March 27, 2017 at 9:08 pm

    canker sore goes away in 1/3 of a week without medication and in 0.333 of a week with medications

  • Reply savage642 April 3, 2017 at 8:13 am

    Dr! Pls. I need help. I have a white painful sore on the tip of my tongue. It's not like any canker sore I've usually gotten on my tongue. This ones much bigger and I might've seen a feint yellow or white as the rim

  • Reply juan garcia April 11, 2017 at 3:49 am

    I have a soar at the tip of my tongue ahhhhh!

  • Reply Xavier Designs May 4, 2017 at 7:58 pm

    I wish this guy was my doctor

  • Reply CJ Zanders July 22, 2017 at 10:10 pm

    Knowing the health care industry, by the time you see dermatologist, the outbreak will have left. What's the point?

  • Reply Musta_Aldren August 9, 2017 at 10:43 am

    I have a white tiny bump on the tip of my tongue and I have sore throat and It feels like a burning sensation.. I don't know what condition I have…

  • Reply AtrociousLove September 5, 2017 at 10:56 am

    I only get them from accidentally biting my inside cheek ;-; it's a crater and hurtssssss

  • Reply Shireen Sukhan October 31, 2017 at 4:12 pm

    i have this problem from last 20 years but now i come to know i am allergic from some things and if i eat that its appear like chocolate , egg, mango and nuts so plz try to notice by yourself as since i am avoiding to eat that things its under control … other then i am telling you all the medications are useless i used almost 50 60 medications homeopathic , normal doctor , hakeem , home remideis from uk and pak but all are useless its can work to pain relief but doenn't work on it so plz try to find the reason and avoid to eat that .

  • Reply My life as Niya December 15, 2017 at 9:09 pm

    I have it on the tip of tounge???I’m in so much pain

  • Reply Ava Wozniak December 30, 2017 at 5:07 am

    If you’re struggling with Herpes go to 4HerpesCure. Com This is a simple self treatment process which borrows its formulation directly from tried and tested, scientific facts as well as age old remedies.

  • Reply Basil Burdette January 1, 2018 at 7:00 pm

    I have a canker sore I can't eat chocolate

  • Reply 2perfect sisters January 31, 2018 at 1:22 am

    Hi Lizzy if you are reading this thumbs up my comment!! Thanks

  • Reply pathetic fat March 2, 2018 at 4:20 pm

    I have a sore on the tip of my tongue it burns and hurts it sucks ?

  • Reply Shaelyn Kipp May 24, 2018 at 7:27 pm

    I have clumsters of big pimples in the back of my thoart it doesnt hurt at all but im still freaking out

  • Reply Zoey Coen June 29, 2018 at 5:43 am


  • Reply Chula Wink September 9, 2018 at 11:30 pm

    I use to get canker cores up to 5 or 6 at a time. Seemed like when went to dentist I would always get one.
    The dentist asked if I took a multivitiamn day. Yes I one a day, dentist said instead one a day try taking 2 a day morning & evening. The dentist said many ppl depleted faster than others. IT WORKED!!! I might have s small one but it goes away & not as painful.

  • Reply Scooter Lover358 September 11, 2018 at 1:19 am

    My last 7 day

  • Reply Supreme Greene September 24, 2018 at 12:38 pm

    Let’s talk about ? mgk

  • Reply Brit Mk 2 November 3, 2018 at 7:49 pm

    Never ever use antibiotics to treat canker sores, if your doctor offers them , refuse, total abuse of antibiotics, pathetic.

  • Reply Aliyah cau May 12, 2019 at 4:22 am

    This is a fast and useful study. I`m recommending this Herpes guide 4HerpesCure. Com to my friend who will start their Herpes remedies to achieve a clearer skin. Very much liked this and appreciated the insight into how my inside issues can affect my skin.

  • Reply jhony cung June 12, 2019 at 12:09 pm

    Please help me Angel hearts. Many innocent people suffer. Please god help me

  • Reply King June 27, 2019 at 6:57 am


  • Reply Angelina Dao July 29, 2019 at 9:09 pm

    On my tongue it's like my taste bud is bigger than the others and it burns when I eat certain things

  • Reply mix master August 3, 2019 at 2:43 pm

    2 days ago I bit my lip and got a sore but it was on my outter lip because that's where I bit and it looks strange but it's a canker sore

  • Reply L Kochhar August 9, 2019 at 11:18 am

    I had addiction of biting under my lips and now i have a bumo there for years now does that is a cancer or a cancer sore

  • Reply Cameron Boyle August 9, 2019 at 10:06 pm

    I have this small brown scab on my tongue which is very sore but I don't know what it is

  • Reply Millli Smallwood September 9, 2019 at 2:40 pm

    Thank you for the ted talk

  • Reply Franksta281 October 1, 2019 at 4:19 pm

    I really hate this bullshit

  • Leave a Reply