What Is The Remedy For Eczema On Scalp And Face?

hi basically for the past 6 months ive been suffering with some sort of dermititis or eczema on my scalp and face. I went to see my local gp 4 times and they said that there was nothing wrong with my face or scalp, i know its there because i have itching, redness, flaking and occassional burning sensations, i know something is there and i want some prescription cream or anything to help me get rid of it, can you advise me please.