After taking preventive injections, i.e. vaccines, it is generally not recommended to take medication without authorization, as it may aggravate the adverse reactions; however, if the disease does exist, the medication should be taken in accordance with the doctor’s advice. This is because after vaccination, some people may experience related adverse reactions, such as fever, etc. At this time, if you take medication at will, it will increase the adverse reactions to the vaccine. However, if you happen to experience discomfort after vaccination, and you are sure that you have a disease after checking in the hospital, you can generally take the medication under the guidance of your doctor, but you must inform your doctor of the type of vaccine you have just received. At the same time, it is recommended that after the vaccine, you should not drink alcohol, do not stay up late, strenuous exercise, drink plenty of water, eat a light diet, and pay more attention to rest.