instruction: hi doctor I am a female in my mid 20 I have noticed a weird pattern on the back of my arm today I do not know how long it has been there it does not hurt or do anything just wondering what it is and what I need to do about it
output: hi I have seen your photographs and to me it seems like pityeariasis versicolor it usually occur in humid weather or sunny season apply the following medications and it will be helpful increased humidity or sweating pityeariasis versicolor ketoconazole cream for local application in the evening and morning over the affected area