Approaching a dermatologist will be helpful in your situation seeing that no home remedies have worked so far.
For your ease we are elaborating on 4 clinically advanced treatments which are concerned with tan removal:
Laser toning: laser device breaks down the pigment within our skin and reduces the appearance of tan, sun spots, etc.
Chemical Peel: solution containing skin nourishing acids, which are extracted from fruits and is applied on your skin, same enables generation of newer & healthier looking skin cells, thereby resulting in removal of older tanned layers of your outer skin as well.
Microdermabrasion: this is concerned with the removal of outer most layer of your skin and rejuvenation of deeper layers of skin which gets revealed in the process.
Creams/face pack/face wash: Results delivered by these are temporary, but with regular application you are able to see some changes, even then the results aren't skin deep and can return your skin to the state that it was at, before you had started using them.
Treatments except that of creams & products will vary from Rs. 4,000 to Rs. 10,000, depending on factors such as expertise of doctor, equipment type, and location of clinic.
To know more, we implore you to get in touch with our trusted experts, through our list - Skin Care doctors in Mumbai, do let us know if you want that of a different city! We are always here whenever you need guidance on any matter!