Irritation: You may have a few different things. It could be an area that doesn't dry out much (licking) and may or may not have a fungal infection, possible viral lesion such as a form of herpes labalis, it could be from trauma of a split lip that just hasn't healed.
Answered 3/19/2018
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A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
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