
What Causes Small Painful Sore On Inside Of Bottom Lip?

I am currently on Carbamazepine XR 800 mg daily for roughly the last 6 weeks for seizure management. My obvious concern is SJS ( Stevens Johns Syndrome). Although I dont have a rash on my body or fever, its odd because I typically never get canker sores.
Not sure whether to ask a neurologist or dermatologist on here.
APhthous Ulcer, Keep close watch
Detailed Answer:
Hi, Welcome to HealthcareMagic,
I have gone through your question and also the clinical image you uploaded.
Clinical picture uploaded by you is in favour of Aphthous ulcer (Canker sore). It is small, painful ulcers on the inside of the mouth, lips, or throat.
Although Carbamazepine is one of the commonest drug causing Stevens XXXXXXX syndrome. At present clinical picture is not of SJS. SJS begins with Flu like symptom (most commonly). More than 10% of the body surface area should be involved including two different mucosal surface.
Keep a close watch, if any macule or vesicle develops on your body other than oral mucosa, stop taking carbamazepine and report.
Hope this will help you.
Regards
Dr Shahid Hassan
MD (Dermatology)


No SJS
Detailed Answer:
Hi, welcome again,
Burning on eyes without any oral mucosa and skin lesion is not SJS. SJS itself is a disease and has its symptoms. Side effect are talked of only in relation to medicines and not diseases. You may say the initial symptoms.
If any other mucosal lesion or skin lesion appears stop taking medicine and consult the doctor who prescribed.
Thanks

Answered by

Get personalised answers from verified doctor in minutes across 80+ specialties
