Scaly legs

I’M in my early 30s. My legs are usually dry and sometimes scaly although I consume several glasses of plain water everyday. I’m also have a few tiny scars due to scratching. Are there any creams or tablets to prevent my skin from itching, becoming dry and scaly? How can I get rid of these tiny scars? Please advise. 

No doubt you have already tried many creams and moisturisers on your skin to overcome the dryness problem. Sometimes this is caused by sensitivity to soaps and detergents, and you may have to change your choice of soap or detergent.