What does it mean to enlarge the salt grains at home?

Because the big salt has a certain effect, it will be kept at home for later use. After heating, large salt will generate heat, which can promote inflammation to subside, relieve pain, reduce deep tissue congestion and keep warm.

Mainly used for backache, arthritis, chronic abdominal pain, diarrhea, neuralgia and other symptoms, such as appendicitis, dysmenorrhea, local hot compress with large grain salt can play an anti-inflammatory and analgesic role, and people with the above symptoms can use large grain salt hot compress, which has a certain effect on health.