I am 27 and have a weight of 97 kg. I have developed much itching in the pubic area. The skin color had changed. Now it has spread to the upper thighs too. It has not reached my penis yet. I have been using dettol to wash and applied calamine lotion also. But no use. Itching is worse in night. Even during sleep, I starts itching unknowingly. In the morning I can feel the burning sensation due to severe itching.