betnovate composition is a steroid based drug, long time application causes itching and thinning out of the skin, only way to get rid of the complaints u r facing is to moisturize ur skin wid a petroleum based jelly- vaseline . consult a dermatologist as soon as possible

Hi welcome to Health care magic forum. Steroids especially betamethasone is most potent steroid. So whenever it is used for few days also it should be stopped strictly by tapering only. as you have used for so long it should be tapered very very slowly under the supervision of a doctor. I advise you to consult a physician to plan for tapering including anti oxidants, vitamins, and nutrients.
Besides i advise you some diet recommendations, as take more of green leafy vegetables, pulses, sprouts, milk, egg, meat, fruits ,juices, and dry fruits which improve blood, general health, and stamina for regeneration of the skin.Wishing for a quick recovery, and thanks for calling.