It has the effects of clearing heat and removing toxins (removing heat and toxicity from the body), resolving blood stasis and inducing diuresis, and can be used in the treatment of furuncles (sores mostly occurring on the limbs or face, with a small shape and deep roots, as hard as nails), swelling and poisoning, sore throat, and injuries from bruises and falls. The dried whole herb is used as medicine, the nature of half a branch of lotus is pungent, bitter, cold, can enter the lung, liver, kidney meridians, with the effect of removing blood stasis and diuretic, clearing away heat and detoxification, and its clinical can be used for the treatment of jaundice, bruises and injuries, boils and poisons, oedema, sore throat, snake and insect bites and other diseases. The contraindications and adverse reactions of Huperzia serrata are not clear, and pregnant women should not be taken. It should be stored in a dry place, and it should be used under the guidance of traditional Chinese medicine practitioners, and should not be taken blindly, so as not to cause damage.