How To Get Rid Of Red And Itchy Skin On Back Of Neck?

i have skin problem on back side of my neck ...it is of red color and i feel itching and some time irritation. and it is from last 5-6 months, it started from a small red portion and now it cover the area of 3-4 cm, i also got relief for some days during this period, but temporary for 2-3 days but now it is more irritating and itching, i have not consulted from any doctor. but i used creams like lobate gm neo on suggestion of doctor few months back, but did not use it regularly now i am again thinking of using these creams.. please assist me what should i do.