You can start initially on milder depigmentation creams which contain kojic
like Melaglow at night and use sunscreen (SPF 35 and above) three times a day. There is options of glutathione
injections to oral tablets with vitamin C
, also laser
toning also gives good results. Laser toning using Q switch Nd Yag laser is an option but results variable. You may need 6-8 sessions at 3 weeks gap. And depending on type of skin whether oily or dry you can choose a face wash. It need examination and personalised plan. You can consult in private with photographs.