instruction: hello doctor I have been suffering from this problem for a few years and every year it seems to be worsening than the previous one I am overweight and by working hard I have lost about 15 pounds I got yearly rash outbreaks on arms especially forearms I have diabetes and taking many medications but doctors say that none of my medicines are responsible for it happens mostly in the summer they are very itchy and do not go away in spite of using creams I took some pills that did not help either it leaves horrible scars even a dermatologist I saw did not seem to know what was wrong I am sure it is partially a heat rash but it has completely scarred up my arms I am attaching the list of medicines I am taking as well as the biopsy report please help
output: hi it looks like polymorphic light eruptions may be allergic contact dermatitis you can use full sleeve cotton shirts to cover the photo exposed area you need absolute sun protection good quality broad spectrum physical sunscreen it is a chronic problem and it may occur off and on you can use mid potency topical steroids over the affected areas once daily for around one week and can continue hydroxyzine control your blood sugar go for photopatch test polymorphic light eruptions allergic contact dermatitis photoallergic reactions to drugs polymorphic light eruptions revert back after the investigations to a dermatologist online