The main component of soda is sodium bicarbonate, and this liquid itself is an alkaline liquid. Because the keratin layer of the skin surface itself is acidic, washing the face with soda can, to a certain extent, reduce the oily skin of the face and keep the skin of the face as dry as possible, which has a certain inhibitory effect on acne and can play a role similar to that of a face wash or soap. The burning-like traces, so that the face appears flushed, burning, peeling, itching and many other clinical symptoms, is not conducive to health. It is also important to note that after washing your face with bicarbonate of soda, you need to wash it many times with water to get rid of the residual sodium bicarbonate before it can play its best role.