It is usually not recommended that the HFMD and chickenpox vaccines be given at the same time to avoid adverse reactions. HFMD and chickenpox belong to two different diseases, so the efficacy of the two vaccines is not the same, in order to avoid one vaccine is affected by the other vaccine and reduce the effect, usually recommended that the HFMD vaccine and chickenpox vaccine are injected separately, you can be inoculated with the HFMD vaccine, and then vaccinated with the chickenpox vaccine at intervals of 15~30 days. Moreover, if the two vaccines are given at the same time, it may lead to an increased chance of vaccine reaction, so in order to avoid other discomforts in the later stage, these two vaccines are not recommended to be given at the same time. In conclusion, hand-foot-mouth and chickenpox vaccines are not recommended to be given at the same time, and it is best to space them out for a period of time.