Good morning ! Start using the moisturiser and sunscreen.It is essential to use a sunscreen as it can reduce the pigmentation to a certain xetent and can prevent further darkening of the face. Since you have been using the creams for sometime,you can opt for procedures ,which when done by a dermatologist,will help in bringing down the pigmentation and can give you a skin with an even tone .I hope this answers your query !
Next Steps
The sunscreen has to be applied once in 3-4 hours especially between 7am-5pm irrespective of the climatic conditions and on all days !