I have an issue Ive had for over a month.. its only on On my left bicep upper arm, I have extreme itching. There is no visible rash or insect bites of anykind. The skin gets very hot to the touch as tho it has fever. Ive been taking Bendryl. along with using Hydrocortisone 2%, and calimine lotion which doesnt help. Ive tried excema cream, apple cider, hydrogen peroxide, alcohol.. everything with no relief. The only thing that gives me temporary relief is putting ice packs on it till it goes numb. Thank you for your help, F.M. Christian