How Safe Is Using Calosoft & Desonide Creame For Rashes On Skin?

sir , my skin is very sensitive. i use only herbal products. i use himalya,boroplus sun protection lotion . but now i using this products my skin get rashes. so i went to skin specialist and he gave me calosoft lotion and desonide cream .how many days i use this and after this i use my regular sunprotection lotion are not ? my skin has also tasnning problem so i use this lotion . please suggest