Itching at intimate areas. Suggest team.

I'm having some sort of rashes or dry skin on testicles, under penis, junction at which thighs join. Having real discomfort and itching when I swet. If I rub those areas when dry, I will be having cells and swet on my fingers. Also very bad smell is coming. I have been cleaning those areas very carefully with soap but no result always there. I have used some ointments but getting a relief for few days then restarts the same. I can feel the difference of skin type on those affected areas and other unaffected areas. Seems like in affected areas top layer of skin is not there having soft and wet skin. If I somehow accidentally rub there, when scrotum contracts Im feeling like getting stabbed by pin or needle at multiple spots. What's this why it's not completely getting removed. What should I do now Please suggest team..