Can you take a bath after getting bruising from scraping (Gua Sha)?

After gua sha, it is generally not recommended to take a bath immediately. One should usually wait about 24 hours; if bruising (sha) is significant, it's advisable to wait 48 hours before bathing, as taking a bath too soon may allow dampness to enter the body. Especially in individuals who already have pathogenic factors, additional dampness may worsen existing symptoms. Specific details are as follows:

Many people choose gua sha to help unblock meridians and remove coldness from the body. During gua sha, localized skin bruising may occur, which mostly reflects the release of internal damp-cold. There may also be minor ruptures of capillaries in the treated area.

After gua sha, the body is in a particularly sensitive state, with blood vessels throughout the body dilated. Bathing at this time can easily lead to illnesses such as colds or fever. Moreover, if cold pathogens enter the body, various discomforts may arise.

Special attention should be paid to keeping the body warm after bathing post-gua sha. It is recommended to drink a cup of warm water after meals, avoid exposure to wind and cold, refrain from direct exposure to air conditioning in summer, and avoid scratching the skin with hands, as this could lead to local infection or pain.