One dermatologist prescribed me to use coal tar and salicylic acid lotion for 30 days every night and then washing it in morning and haloroft lotion for 15 days but alternatively in morning and evening for my saviour dandruff and itching condition but I forgot him to ask the day I apply haloroft lotion in evening then applying salicylic lotion would create any problem? As they both will get mixed, won't they cause any reaction, that's it. Main thing is I forgot him to ask the dosage. So please help me out.