Tinea infection

3 years boy ulcerative lesion on root of the penis and left axilla since 1 week. No itching , diagnosis and treatment?

2 Year old baby girl , according to parents they noticed these lesions 1 day back because child was irritable and continuously itching the axilla , lesions were crusted, pustular, tender and there were some vesicles too, involving both axilla, need help with diagnosis and treatment???

A female student presented with such lesion, no history of burn, or injury or contact with chemical, slight itching was there at night and noticed such eruption in morning

19 yr old boy present with these puss filled boils localized. Kindly give dx and Rx

female pt, age 17yr no h/o itching , no h/o fever, no h/o pain.. what would be diagnosis and treatment sir ?? previously she had same type vesicles over face.. bt subsided by itself..