please help us to understand what is this. Already consulted two doctors they suggested to apply siloderm cream other one suggestion, dermocalm lotion. refer attached image (upper back side)

A. hello ho e you are not applying any powder and also make sure to clean the area well with wet wipes and soap well and if this is not improving with the medication advised by your doctor then it is better to check with your dermatologist and he can guide you better on examination of the same