The weather turned cold and my body began to itch.

Your symptoms are due to the change of autumn and winter seasons, dry air, reduced moisture in the external environment, and dry skin. In addition, the secretion of sebaceous glands in your skin is not strong enough, the sebum membrane that protects your skin is reduced, and bacteria invade the dermis of your skin, which is manifested as itchy skin.

It is recommended not to bathe with alkaline cleaning products such as soap to avoid scalding with hot water. The water temperature should be close to human body temperature. Avoid eating too much spicy food.

If the above suggestions don't work, you can try Quyang 1 sold by the drugstore, which can relieve itching and nourish the skin. It's very easy to use. Washing or wiping can solve your problem.