i am 26 years old and about 7 weeks ago i thought i was bitten by something on my palm. But it has now spread to both of my shins, behind my neck near my ear, my stomach, wrist and a little on my back. it is redish and lumpy and so itchy i am going insane!!! i have been to 5 doctors and some are saying its dermatitis, others ezcema, and one saids scabies. so i have been given all these creams, anti histemenes all which have done nothing, but it did get a little better when i was taking pretnasoine. But it has come back again and i have no idea what it is and am desperate to find out. I cant sleep at night because i am scratching so much, i am taking the skin off. what could it be???