, you need to use a medicated anti acne face wash along with oral and topical anti acne medicines. For the same you need to consult a dermatologist
. The minute white granular structure that you have mentioned might be white heads which are eventually developing into acne lesions. So if you are having white heads or black heads get them removed, use a good anti acne face wash containing salicylic acid
, dont touch or squeeze your pimples
as they might heal with pigmentation. You can continue using glycerine gulabjal if it suits your skin well. Take care.