For a while now my whole body been itching as it starts only at night when ever i wantd to sleep i fil my whole body begin itcng include my penis also,now it has spot all around ,I cnsultd a doc, i was givn meds,i startd takng it for a week i see no diffrnt,now i cant stay where people are as this itching started happening the whole day morning,after,evening,night. which it keep itching me including my whole penis am just so fedup with all this and i don't know what the cause is.Im 23...pls help