I have a dark, crust-like patch on my knuckle on my right index finger. It has been there for a while. It may still be my eczema but most of that has cleared up. My other fingers are just fine. I ve tried almost everything. Other than eczema, what could this be?
Hi Dear, Welcome to Chat Doctor. Understanding your concern. As per your query you have dark crust like patch on knuckle of right index finger. Well there can be many reasons for symptoms you mention in query like sunburn or another kind of burn, infections, lupus erythematous, dermatomyositis, hormonal changes or seasonal allergy. I would suggest you to apply petroleum jelly, avoid applying any other cosmetic, keep it clean and Chat Doctor.