Talk to Dermatologist on Skin Problem

assalamoalaikum it's been two weeks I was having irritation in my skin and from past five days the condition is getting worse my doctor prescribed me terbinafin HCl tube and mecoderm tablet but I'm confuse is it a jog itch or psoriasis it's been 2 days I have taken my antibiotic my inner thigh area is affected what precautions I can take and what it is actually please help