<s>[INST] hello sir i have mouth ulser problem from past 12year but its not mouth ulser its skin allgery accoding my study about my body its not mouth ulser its skin allergy now its has been developed  as in my body parts like hands  many more place in body please help me please [/INST] Hello, Welcome to HCM and thanks for your query. There are some  conditions like pemphigus and lichen planus that affect both mouth and body. Internet search and information are not reliable but never a replacement for consultation with the appropriate doctor. You should see a dermatologist and have the condition diagnosed and treated. Take care, </s>