I am concerned about the potential interactions with the sun UV rays when I take doxycycline for my acne and seborrheic dermatitis. I am also taking promethazine, Loratadine, fexofenadine for hives, allergic rhinitis and have taken naproxen with famotidine as well and avamys Nasal spray and nasonex. The polyclinics doctor have also prescribed me with prochlorperazine and dextromorpthan for cough. I am also taking Blackmores Omega 3 fish oil 1000 odourless, blueberry vision from Holland and Barrett and Blackmores Health Supplement buffered C slow release purchased from Guardian. Are all these medications considered safe and are there any foods and/or activities I should avoid when on these drugs/medications/supplements? What is the best treatment for seborrheic dermatitis and/or folliculitis?