Both hands itch but nothing rises.

Both hands itch, but there is no thing, considering that it is caused by the following factors: 1. It may be pruritus. Many skin diseases share a kind of conscious symptoms. Patients will show local skin itching, but there is no obvious primary damage. Clinically, it is called pruritus. 2. It may also be caused by local dermatitis after exposure to some allergens. The patient may be allergic to himself. After exposure to some allergens, it may cause local skin itching. 3. When some factors such as diet or environmental climate change, it may also cause patients to show local skin itching. This is caused by the skin being sensitive to external stimuli. It is normal and does not need treatment. It can heal after a period of time.