Oxalis is mainly used to clear heat and detoxification (removing heat and toxicity from the body) and dispel wind and dampness (removing wind and dampness from the body), and is used in the treatment of rheumatism, paralysis and jaundice, among other ailments. Oxalis is derived from the dried whole grass of the grass family Oxalis. It is sweet, light and mild in nature, with the efficacy of dispelling wind and removing dampness, clearing heat and removing toxins, dispersing blood stasis and stopping bleeding. It is used in the treatment of rheumatism and arthralgia, jaundice, children’s dyspepsia, diarrhea, dysentery, drenching pain in urination, bruises, bleeding from traumatic injuries, and dog bites, etc. The adverse effects and contraindications are not yet known. Its adverse reactions and contraindications are not clear. It should be noted that if you feel unwell, it is recommended to go to the hospital as soon as possible, under the guidance of the doctor to carry out scientific treatment, do not avoid medical treatment, not to mention self-medication, so as not to delay the condition, affecting the follow-up treatment.