If you have rabies vaccine and experience weakness, headache, dizziness and other discomforts, it may be a normal side effect reaction to the medication. After using rabies vaccine due to its toxicological effects, redness, swelling, pain and itching may appear at the injection site, which can be relieved on its own without treatment. Some patients may experience systemic reactions, such as mild fever, weakness, headache, dizziness, arthralgia, muscle pain, vomiting, abdominal pain, etc., which usually subside on their own without treatment. The vaccine is prohibited to be injected into the buttocks and cannot be injected intravascularly. Anti-rabies serum or rabies immune globulin must not be injected in the same limb. It is also contraindicated in persons with acute illnesses, severe chronic illnesses, acute exacerbations of chronic illnesses and fever, as well as in persons with uncontrolled epilepsy and other progressive neurological disorders. If there is discomfort after rabies vaccination. It is recommended to seek medical attention in time, clarify the cause with the help of a doctor, and carry out targeted treatment or therapy.