Hi there , I’m facing some pigmentation around my mouth,  eyes, and nose means in the T-zone . This area is extremely dry no matter how much quantity of moisturizer I've applied.Rest of my face and cheeks and forehead is normal. I've used everything lightning and brightening creams glycolic acid, azelaic acid Kojic acids nothing works. Problem is only it get worst in the contact of sunlight... Could you please guide me on what might help? I’d really appreciate your advice. I'm attaching live photo after doing skincare.