I am sorry to hear about your persistent health problems,
Melasma is a common skin condition that affects the face and causes patchy, brown, tan or blue-gray spots on the face. It is one of several skin conditions that result in patches of discolored skin. Most people with melasma get dark patches on their cheeks, chin, nose bridge, forehead, and above the upper lip
According to the American Academy of Dermatology Association, these are some of the common treatments:
Topical treatments for melasma
Hydroquinone: This medicine is a common first treatment for melasma and works by lightening the skin. Hydroquinone comes as a cream, lotion, gel, or liquid and is applied to the skin.
Tretinoin and corticosteroids: Both of these help with lightening the color of the patches on the skin. They come in gels, creams and lotions.
Other topical (applied to the skin) medicines: Other topical treatments that may be prescribed to help lighten melasma include azelaic acid or kojic acid.
Procedures to treat melasma
If topical treatments do not get rid of melasma, your dermatologist may recommend a procedure to treat melasma. Procedures for melasma include a chemical peel, microdermabrasion, dermabrasion, laser treatment, or a light-based procedure.
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