I don't know why my body itches even if i take a shower. does any one knows what happening with my body ?

Itching: Can come from many different reasons. Even taking a hot shower can make some people itch. If you try to use just luke warm water and a very gentle soap like dove and then rub down with a bath oil afterwards and you still feel the itch, you should get a check up and see if there are any internal reasons that are causing the problem. An exam and blood tests may be needed to find the cause.