Huo Xiang Zheng Qi Pill has the efficacy of relieving the surface and resolving dampness (relieving the evil qi of external sensation and getting rid of the dampness in the body), which can be used to treat summer dampness and colds and other illnesses, but it is not the right remedy for phlegm-dampness obstruction syndrome, and Er Chen Pill and Liu Jun Zi Pill should be chosen to treat phlegm-dampness obstruction syndrome.
Huo Xiang Zheng Qi Pill is a common Chinese medicine, which is mainly composed of Chen Pi, Han Xia, Hou Pu, Da Bai Pi, Platycodonopsis, Poria, and Glycyrrhiza glabra.
Because Huo Xiang Zheng Qi Wan can clinically relieve surface and dampness, regulate qi and zhong (regulating the qi of the spleen and stomach so as to make the spleen and stomach function smoothly), it treats mainly summer-dampness colds resulting in headache, body weight, chest tightness, malignant cold (fear of cold), fever, distension and pain in the epigastrium (stomach and abdomen), vomiting and diarrhea, etc. It can also be used to relieve phlegm-dampness.
If the person is phlegm-damp, he/she can choose the medication that dispels dampness and resolves phlegm, such as Er Chen Pill and Liu Jun Zi Pill.
The adverse reactions and contraindications of Huo Xiang Zheng Qi Wan are not clear, and the medication should be taken in accordance with medical advice.