Hello. Thank you for writing to us at healthcaremagic
Melasma is recurrent.
Therefore maintenance treatment with strict sun protection and a pigment reducing creams is recommended.
Home remedies that you are using are not approved for treatment and I suggest that you discontinue with these.
The cream suggested by your cousin is a combination of mometasone+tretinoin+
hydroquinone. It is gold standard combination for treatment of melasma.
However, it is a prescription product and should never be used on advice of a friend or cousin.
This combination cream is usually prescribed by
dermatologist only for the first 6-8 weeks of treatment.
It can cause side effects like skin thinning, acne, hirsutism on long term regular use.
After the initial phase of treatment with this combination, patient is usually switched on to to safer yet effective pigment reducing ingredients like
glycolic acid,
kojic acid, hydroquinone etc.
I suggest you to visit a dermatologist for the needful.
You may also opt for a few sessions of chemical peeling from your treating dermatologist.
Regards