Hello Doctor, I Have Been Having Skin Lessions On Face

Hello Doctor,

I have been having skin lessions on face for last 6 motnhs.. doctors say it dermal pigmentation. Last six months i have been taking melanox tablet and melaumium cream . But no improvement so far. REcently doctor prescribed me BEtnesol 5 mg and Pantop 40 MG.. Is it advisable to take the same and is there a relation between acidity and skin pigmentation . Last six motnhs i have been suffering from dry cough.. also