Huo Xiang Zheng Qi Shui is a Chinese medicinal preparation mainly used to treat summer dampness and colds, indigestion, diarrhea and other diseases. Currently, there is no scientific evidence that patchouli can treat eczema. Eczema is a skin disease with a complex etiology, which may be related to genetic, environmental and immune factors. Currently, the main treatment methods for eczema include topical medication, oral medication and phototherapy. If your eczema symptoms are mild, you can try using some over-the-counter creams or lotions such as hydrocortisone and glyburide. If the symptoms are severe or last for a longer period of time, it is advisable to seek medical attention for diagnosis and treatment. It is important to note that patchouli is not recommended for the treatment of eczema as it may irritate the skin and aggravate the symptoms. If you need to treat eczema, it is recommended to consult a doctor or pharmacist for advice.