I've been wanting to ask a dermatologist this but I can't find any available right now. I have been prescribed Duac (benzoyl peroxide with clindamycin) and have been using it for about 3 years for my acne. It is quite drying so I apply a moisturizer 10 minutes after applying the Duac at night. I recently came across the effaclar duo moisturizer which contains salicylic acid in the UK. Can I use this as a moisturizer after Duac at night?