Can I get vaccinated after drinking Huoxiang Zhengqi Liquid?

Dec 02, 2025 Source: Cainiu Health
Dr. Li Feng
Introduction
In general, healthy individuals who take Huoxiang Zhengqi Liquid to prevent heat and dampness can proceed with vaccination as planned. However, if the liquid is taken due to illnesses such as colds or diarrhea, vaccination should be postponed until symptoms improve and medication is discontinued. It is important to distinguish the purpose of medication use in daily life; if the medication is for treating an illness, priority should be given to restoring health before scheduling vaccination, to ensure both safety and effectiveness of the vaccine.

Generally, healthy individuals who take Huoxiang Zhengqi Liquid for preventive purposes against heat and dampness can proceed with vaccination as planned. However, if the medication is taken due to illnesses such as colds or diarrhea, vaccination should be postponed until symptoms improve and the medication is discontinued. The detailed explanation is as follows:

Huoxiang Zhengqi Liquid is commonly used to relieve summer-heat dampness-related colds and gastrointestinal discomfort. Its ingredients are primarily traditional Chinese herbs. Short-term preventive use in healthy individuals typically does not cause adverse interactions with vaccines nor affect vaccine-induced immune responses. However, after vaccination, bodily reactions need to be monitored. If an illness is active, symptoms such as fever, nausea, or abdominal pain may overlap with common post-vaccination reactions, making it difficult to accurately identify the cause.

During illness, the body's immunity is relatively weakened. Vaccination at this time may impair antibody production efficiency, reduce protective efficacy, and potentially worsen existing symptoms. Before vaccination, individuals should proactively inform healthcare providers about their medication use and current health status for professional assessment.

It is important to distinguish the purpose of medication use in daily life. If the medication is being used to treat an illness, priority should be given to restoring health before scheduling vaccination, ensuring both safety and effectiveness of the vaccination.