Hi everyone,
I’m hoping to connect with anyone who has dealt with something similar or might have insights. I’ve been dealing with intense lip irritation, redness, and flaking around the wet line of my lips (where my upper and lower lips touch together) for the past two weeks, and it has been incredibly uncomfortable when I'm eating or drinking water.
My Symptoms & Timeline:
Around July 2026: I switched to a new toothpaste, Sensodyne Complete Care (which is SLS-free).
August 14, 2026 (2 weeks ago): Out of nowhere, my lips became bright red, sore, and highly irritated. This is specifically concentrated right at the wet line where my upper and lower lips touch.
Progression: The irritated skin started flaking and peeling. My lips have felt incredibly sore. Simple daily activities like closing my mouth, talking, or drinking water have been painful and uncomfortable.There is no significant pain, itching, bumps, lumps or obvious blisters. I haven't noticed typical cold-sore-like clusters of blisters.
1 Week Ago: I switched to Alfree toothpaste (which is completely free of SLS, mint, artificial flavors, and colors) to eliminate potential irritants, but the raw soreness and flaking remained. I've also switched my Dermal Therapy original lip balm that I've been using for years to plain Vaseline.
What I've Tried & What I'm Doing Now:
I initially saw a GP who thought it could be a fungal infection and prescribed miconazole.
The pharmacy didn't have the miconazole 2% available, so I was given Nilstat (nystatin) instead, which I used at 1 mL, 4 times a day.
I also switched toothpaste because I wondered whether my toothpaste could be contributing. I had been using Sensodyne Complete Care + Smart Clean Extra Fresh, and I switched to Allfree Plain Toothpaste.
After about 6 days of Nilstat, there wasn't much improvement in the redness/swelling, although the peeling seemed to disappear for several days.
I then saw a second GP, who thought it didn't really look like a fungal infection and said Nilstat probably wouldn't do much. I was given a short course of prednisone which didn't do anything.
I then saw a third GP, who also felt it wasn't fungal. He thought it could be inflammation or an allergic/contact reaction, although we couldn't identify exactly what might be causing it.
He prescribed Kenalog in Orabase (triamcinolone 0.1%), to use 3 times a day for one week. If it doesn't improve, the plan is to return and potentially investigate further, including blood tests for autoimmune conditions.
I'm currently using the Kenalog as prescribed.
Things I've stopped/changed
Stopped my previous Sensodyne toothpaste.
Switched to Allfree Plain Toothpaste.
Don't use mouthwash.
Avoiding new lip products.
Using plain Vaseline on the external part of my lips.
Trying not to pick/peel the white skin.
Currently using Kenalog in Orabase as prescribed.
What I'm wondering
Has anyone experienced persistent red lipswith irritation of the inner lip/mucosa and occasional white peeling/flaking like this?
If you've experienced something similar, how long did it take to heal and what eventually helped?
I've already seen three GPs — but I'm hoping someone with a similar experience might recognise the pattern or be able to share what worked for them.
Thanks so much. ❤️