Hello, I think it would be lichen planus
. Take methyle prednesolone in tapering dose for one month, as 8 mg thrice a day for 5 days, then twice a day for 5 days, then once a day for 5 days, then alternate days for 15 days, then stop. And rub medium potency steroid
cream, like mometasone
or halobetasole or betamethasone
... Avoid stress, worries, over load of work, be positive ..Avoid injuries, soap bath . I hope you would get result.... Best wishes.