Suggest Remedy For Pigmentation And Dry Patches On Facial Skin

I am 38 years old with fair skin but my skin has this old acne scars and blemishes and now small spots of pigmentation have started. When I used suncross given by a dermatologist , I got severe dry patches around my nose and mouth ...with itching ..it has receded after stopping that wt could I use now for my face regimen for my problems please advice ..