My Skin, All Over, Gets Extremely Dry... So Dry It Looks Cracked, and Has a Very Odd Looking "Dry Shine" Any Ideas? (photo)

I do drink alot of water... My father has psoriasis, not sure if that has anything to do with it... Live in Florida, get battered by the Sun all the time... HELP! probably not giving enough info, if theres anything else I should mention please let me know

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