drink a lot of water, this will help moisturize your skin.

Increase your water level. Drink up! Make sure to drink at least 8 glasses of pure water a day to keep your skin and body properly hydrated. Drink more if you’re super active.

Add oil to your bath. Add a tablespoon or so of almond, jojoba, olive, or hazelnut oil to your bath water after you’ve soaked for about 5 minutes. By soaking first, your skin gets plumped up by the water, then by adding the oil, it will seal in the absorbed moisture.

apply an adequate amount of lotion 2 times a day, avoid using harsh soap because this will contribute to dryness, avoid too much exposure to sunlight.

my brother got this kind of problem also and he uses a moisturizer and maintain it everyday. its easy for you to recover your skin into its usual color.

how serious is this dry skin of yours? if it's severe, consult a dermatologists, they are the only one who can help you.