Testicles skin is becoming dry and scaly

Hi, From past 5-6 days i have observed that my testicles sack(don't know how to describe it) skin is becoming dry and scaly, upon cleaning while bathing thin scaly layer is coming of from the skin. I never had this problem before, I always maintain good hygiene but I don't know how this happened. Today the skin was itching so I gently rubbed it but I felt some kind of burning sensation (like when your skin gets paper cut or something like that) so when I cleaned it today the dry skin came off when I was bathing and cleaned it gently but the whole testicle sack become red. I have applied the following creams but not getting any better results- (1) itch guard (2) dermigo5 (3) luliconazole. (Bought it from medical store cause I was feeling shy to visit the doctor)The last one I applied today. Please tell me what is the problem and is there anything to worry? Also suggest me to whom should I visit dermatologist or sexologist. Thanks.