Hi there XXXX.
does not usually involve the face.
White patches on the face can be one of many entities. I dont advocate Permethrin soap for my patients usually but each doctor has his/her own rationale & am sure yours meant well.
I would advice using a good quality sunscreen depending on your face type et al & for this one would require further descritpion of your skin type et al
It would be best if you reported to another dermatologist
to get a second opinion
& take it from there. If from Blore, you are most welcome to my set-up or a number of colleagues i could recommend you depending on your area. Else feel free to use the HCM directory.
Good luck & hope you soon have a blemish free skin
Dr Praveen Rodrigues MD
Dermatologist, Cosmetologist, Venereologist
Vikram Hospital, Bangalore