Hello. Thanks for writing to us at healthcaremagic The white patches are most likely due to pityriasis alba. The patches are common on dry skin. They can be somewhat scaly as well, thus giving a rough appearance to the skin. Pityriasis alba patches are light colored (lighter than the surrounding skin); the light color being actually due to post-inflammatory hypopigmentation. I usually recommend a good moisturizer, twice daily. You may use an OTC moisturising lotion like Vaseline, once or twice daily depending on the severity of dryness. For the patches you may also use an OTC topical steroid e.g 1% Hydrocortisone twice daily for the patches, over and above the moisturizer. That should help fade away the patches in 2-3 weeks. Tanning could be the reason behind your dark complexion. Stay away from sun during peak hours (i.e 10AM to 3 PM). Use a broad spectrum sunscreen whenever outdoors. Reapply every 2-3 hours. At night you may use a kojic acid based cream to gradually fade away the tan. These are prescription products and I suggest you to visit a dermatologist in your vicinity for more details and the needful. Regards