Hi.. Welcome to HEALTHCARE MAGIC .. I have gone through your query and can understand your concerns.. As per your query Melacare cream contains Hydroquinone, Tretinoin and Mometasone Furoate.. Mometasone Furoate is a Steroid and long term use of steroids can cause Steroid Dependence and as you stop using it there will be withdrawal symptoms like skin darkening, pimples, itching, rashes etc.. I would suggest you to stop using Melacare cream and can apply creams containing Kojic Acid, Azelaic acid, arbutin and Vitamin E.. You can also use Vitamin E gel or cream.. You should wash your face with depigmentation facewash containing Salicylic acid and glycolic acid.. Take Vitamin C supplements.. Scrub your face with a gentle scrub.. Limit sun exposure as it can cause further darkening due to Photosensitivity.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.