Using dovobet ointment on psoriasis since 12 now 19. occasionally on genital area. what could be the side effects ? permanent? i have stopped now.

Depends on how used: Avoid any but occasional use in folds such as genital. Likely to cause atrophy [thinning] of skin there. Using large amounts, more than 2 oz per week, might produce enough systemic absorption of steroid to be a problem. Atrophy of skin is not permanent, but is slow to recover. Generally safe. You forgot to indicate the benefit. Why did you stop? Best result is to see a dermatologist.