r/CankerSores

Most brutal canker sore I've had

Most brutal canker sore I've had

I already used bactidol which irritated my tounge and caused burns which made everything else so much harder. I was also taking antibiotics but its been 7 days already and the doctor told me to stop. I used saltwater and it had no effect, I even put salt directly on it. Its been 9 days already.... idk what else to do other than endure this nightmare.

u/FunImprovement137 — 10 hours ago

Chronic Burning Tongue & Recurrent Mouth Sores Since COVID — Anyone Else Experiencing This?

Hi everyone, I wanted to share something that has been bothering me for almost 4 years now, because I genuinely still don’t know what’s causing it and I’m wondering if anyone else has gone through something similar.
Everything started after I got COVID for the first time. Since then, I began developing recurrent canker sores and lesions on my tongue, along with a constant burning sensation, almost like my tongue is irritated or “burned.” Sometimes the symptoms are milder, sometimes much worse, but I’ve almost never had a period longer than 10–15 days without symptoms.
I’ve tried pretty much everything:
B vitamin and B12 supplementation,
changing my diet,
cutting out alcohol,
avoiding acidic foods,
tracking possible food triggers,
different supplements and immune-support approaches.
Nothing has brought lasting improvement.
What’s interesting to me is that I strongly feel this may be connected to the immune system. Besides this, I’ve also been dealing with chronic fatigue for years, frequent viral reactivations (HSV), and immune-related issues in general. Oddly enough, during regular colds or infections, some of my symptoms temporarily improve, which has always seemed very strange to me.
I also feel like my tongue is chronically inflamed or hypersensitive — it’s not always a classic canker sore, but more of a persistent burning, stinging, irritated feeling.
Over the years I’ve done various tests, but I still don’t have a clear answer whether this is:
a post-viral issue after COVID,
an immune dysfunction,
a nutrient deficiency,
some type of autoimmune reaction,
MCAS / histamine related,
nerve inflammation,
or something completely different.
I’m curious:
Has anyone experienced something similar after COVID?
Did anyone manage to identify the cause of chronic burning tongue and recurrent sores?
Has anything actually helped?
Any experience or advice would really mean a lot to me, because after 4 years of constantly recurring symptoms, it’s becoming extremely exhausting.

u/Ok_Judgment671 — 1 day ago
▲ 8 r/CankerSores+2 crossposts

I have this weird thing behind my teeth

I was wondering if any of you guys know what it could be and if I should see a doctor

u/MaleficentAnt3306 — 1 day ago
▲ 2 r/CankerSores+1 crossposts

Recurring mouth sores

Female, 16, 5’4, 108lbs

I take Zoloft and Omeprazole. I don’t smoke or drink

history of allergen issues (none food related but basically everything outdoors, all penicillin products, and zinc for sure) and stomach issues (gastrointestinal ulcers)

Hello, I have almost constant mouth sores that are large and extremely painful. I have atleast one in my mouth at all times. Currently I have two large ones that appeared unprovoked (I did not bite or cut my mouth). I am so done with these sores, they are affecting my life and i’ve had them for years now. I am unsure what else to do, I use magic mouthwash and a non sls toothpaste. I have great dental health and my dentist can’t seem to understand why I keep getting them. I had an allergic reaction to my braces 3 years ago when they were put on so I have a lot of scar tissue in my mouth. I wonder if it has to do with my stomach issues because I also experience a lot of acid reflux and heartburn. Any advice is appreciated.

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u/Dry_Accountant4435 — 2 days ago

From 0-100

Only ever had one mildly small canker sore a year. Over three days I developed no less then 7 of this size on my lips and cheeks, as well as directly on my gums and under my tongue (that one is a bit smaller). Can not eat or even drink really because it has inflamed the hell out of my tonsils as well, trying to eat a single small bite of toast ended with a ton of skin sloughing off from around my mouth. Feels like death.

u/Sad_Pipe2183 — 2 days ago

canker sores?

Does anyone know what these are?? I thought mouth ulcers but google has different photos, i’m thinking maybe canker sores? Has anyone had anything similar? I have a big bubble on one side of my lip and then these white patch bubbles. They’re not sore just uncomfortable and I have a small bump under my tongue too

u/Weird-Jackfruit-6195 — 2 days ago

It hurts like hell

It's been this big for like a week and a half now. Also does anybody know what those white spots are (first pic)? I also have 3 other small ones that hurt kinda bad

u/owlneverdied — 3 days ago

Canker Sore on Uvula - Does it go away? HELP!

Thought I had strep but turns out I have a large ulcer (canker sore) on my uvula that is causing major discomfort anytime I swallow, raise my voice, even breathe the wrong way.

It's been a week of absolute hell. I'm an amputee and this ulcer/canker sore is significantly more invasive right now.

My anxiety is out of control about this, I can't sleep through the night or eat without significant pain.

Please tell me that at some point this goes away. Please.

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u/ThotCity — 3 days ago

hey! i was wondering if this was a cold sore or a canker sore i've never had a cold sore before and just want some confirmation if possible.

u/Adept_Crew_1306 — 3 days ago

Sores caused by Lexapro?

I've never had a lot of sores, maybe the odd one here or there. Weeellllll, i started my first job about a month ago and started drinking monsters every day. I had no issues for a full month, and i started lexapro at the same time. Well, a couple of days ago, i got one sore. Then more. Then more. I have about 16 right now. I work customer service, i talk all day, and i dont know what to do. I quit energy drinks when they showed up, quit lexapro (doctor said thats probablythe cause), quit acidic and spicy foods, quit sharp foods, and now it hurts so much to eat that i have to drink watered down mashed potatoes and protien shakes. I can't eat solid food. What do i do? What are some good remedies?

I need something to make them go away, not numb it. I keep biting them at work because of how much i have to talk, and taking off work isn't an option.

I already tried/ use

Kanka

Salt

Magic mouthwash

Honey

Toothpaste without SLS

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u/EthanDemeyo — 4 days ago

Help

I recently got a canker sore in my throat. It has grown a good amount in the past few days but somewhat stabilized today. It’s very painful and I’d like to know if there are any remedies/methods to reduce pain and make it go away. I’ve been gargling with salt water and using ambesol to try to and make some of the pain go away.

u/Unspeakablehp — 5 days ago

Canker sore relief miku

I have at least 6 cankersores a month and im always losing my numbing stuff. she keeps me sane. Everyone say thank you miku

u/Fabulous_Drag6618 — 5 days ago

Are these canker sores?

In March, I randomly woke up with these sores, they only are on my upper cheek where the gums meet the cheeks and on both sides. I went to the doctor, he sent me to urgent care, who didn’t know what they were either. I went to a dentist who said they didn’t think it was mouth cancer (wasn’t afraid til then). I went to a second dentist to said she didn’t know but put in these photos as a referral to an oral/maxxilfacial surgeon but the date for the appt is February 2,2027 and I cannot live with these till then.

If it helps, I have Wisdom teeth on one side not the other so it isn’t that. It’s been two months and they haven’t gone away. I tried salt water, peryoxl, baking Soda, an anti fungal mouthwash and antibiotics and nothing has gotten rid of them. I’m at a lose and don’t know what to do.

u/Embarrassed-Lab8385 — 5 days ago
▲ 5 r/CankerSores+1 crossposts

Mouth Infection

27F and trying not to spiral because this keeps progressing and I’m confused.

Monday: noticed one swollen gum on the bottom front of my mouth. That was my only symptom.

Tuesday: it progressed to multiple swollen gums, I developed two canker sores, and my lymph nodes became swollen/tender. I went to urgent care and they told me it was likely from stress/a weakened immune system and to monitor it.

Wednesday: I developed a fever, my throat started hurting, and it became increasingly inflamed. Swallowing became painful and my lymph nodes got even more painful.

Thursday: my fever still hadn’t gone down, my throat looked significantly worse, and I felt awful, so I went back to urgent care. They tested me for strep and it came back negative, but because everything looked inflamed they prescribed me a Z-pack (azithromycin).

I’m now on day 2 of the Z-pack and my throat looks horrible, very swollen tonsils with white patches, fever ranging throughout the day at 100-102, my gums are still very swollen, I have sores in my mouth, and my lymph nodes are still swollen.

Has anyone had something similar? Did it end up being strep, mono, viral tonsillitis, HSV, something autoimmune, etc?

I did get tested for strep via swabbing of my throat but it came back negative.

I also have my wisdom teeth still that are half visible and get irritated a lot- not sure that's a contributing factor?

u/Free-Ad4119 — 6 days ago

Is this a canker sore?

My jaws been hurting all day & tonight I saw this while looking for a cause, it seems like a small red hole.. -worth getting checked?

u/Gaysage23 — 6 days ago

Please help

I bit my cheeks / lips when i sleep since I have bruxism and over the last couple of days they have spread (I also feel very run down but i do think thats because of a horrible cold/virus I have and usually get ulcers when im unwell). The worse one in the tongue one, it wont let me eat or drink anything without horrible pain) I have gone to a&e twice and they said its fine and not to worry about it. Im doing the salt rinses, I have Benzydamine mouthwash, I do bonjela. Only thing I couldn’t get is steroid cream for them as they haven’t been in stock for a while. I think one of my snake bites is getting angry as well from over cleaning it with salt but its the only thing that helps the pain. Any recommendations?

u/Various-Morning305 — 6 days ago

I have three canker sores and I can’t stop biting them

Please give me some tips to help get rid of them quick or just how to stop the inflammation so I stop biting them when I chew, two are on my right side and one is near my molars on the left. I’m begging for any advice because I’m in agony

u/DittoTheLegend — 6 days ago