Huo Xiang Zheng Qi Liquid is a commonly used proprietary Chinese medicine, and Huo Xiang Zheng Qi Liquid is mainly used in the treatment of external wind-cold, as well as having symptoms such as breathing. The composition of Huo Xiang Zheng Qi Liquid is relatively complex and may contain some alcohol content. At present, for the patchouli Zhengqi Liquid treatment of gray nails, the effect is not significant. Most gray nails are caused by fungal infections, and alcohol has no therapeutic effect on gray nails. For the treatment of gray nails, you can apply topical antifungal ointment and take oral antifungal medication. In addition, pay attention to keep the nails clean and dry.