As it transpired I had undiagnosed scabies for about 3 months. I had gone to my GP who ruled out scabies and claimed it was most likely allergies. I was taking cortisone for 6 weeks and going crazy as it was not doing me any service (obviously as I had scabies). Finally got an appointment with a dermatologist who said it maybe scabies, treated myself for 2 weeks and 1 month later I was itch free!!!!!