The licorice and seaweed belong to one of the Chinese medicine “eighteen against”, take together may be able to produce or enhance the toxic side effects, clinically generally can not be taken together. The sweetness and flatness of the nature of the roasted licorice, with the spleen and qi, ease the pain and other effects; seaweed is bitter and salty cold, with the elimination of phlegm, soft and dispersal of knots, the effect of diuresis and swelling. “Eighteen against” refers to the two drugs used together, can produce or enhance the toxic side effects of a pairing relationship, including eighteen kinds of Chinese medicine. The two medicines belong to one of the “eighteen counter”, and cannot be taken at the same time. Some studies have shown that seaweed with licorice total arsenic, arsenous acid and dimethylarsenic dissolution increased, resulting in heart, liver and kidney damage. Chinese medicines need to be taken under the guidance of a professional Chinese medicine practitioner, do not take medicines on your own, so as not to cause adverse reactions and harm to the body. If discomfort occurs, it is recommended to consult a regular hospital to clarify the cause of the disease and treat the cause.