Very dry body with a lot of white flakes can be caused by environmental factors, but also due to dry eczema, psoriasis and other reasons. 1. Environmental factors: If the environment is too dry, such as in the fall and winter seasons, it is easy to appear the phenomenon of dry skin dehydration, you can use emollients to relieve, such as petroleum jelly, glycerin and so on. 2. Dry eczema: dry eczema is generally caused by the reduction of oil secretion on the surface of the skin, which can be manifested as dry skin, dry cracks, easy to appear in the limbs, you can use emollients such as petroleum jelly, etc. to relieve, if accompanied by itching, you can use antihistamines such as chlortetracycline and other serious drugs. 3. Psoriasis: Psoriasis can appear red spots, scales and other phenomena, easy to appear in all parts of the body, you can use glucocorticosteroids such as hassanide solution and other treatments. If the phenomenon of white flakes on the body is serious, go to the hospital in a timely manner, the use of the above drugs should follow the doctor’s instructions.