MMR refers to the live attenuated MMR vaccine, and the mumps vaccine is not needed if you get the live attenuated MMR vaccine. The MMR vaccine is a biological agent that can prevent measles, mumps, and rubella. People over the age of eight months who are susceptible to measles, mumps, and rubella can be protected against these diseases by receiving the MMR vaccine in a timely manner. The mumps vaccine is a vaccine used to prevent mumps. Vaccination with MMR vaccine can produce immunity against the mumps virus, which can prevent mumps, so there is no need for mumps vaccination. Timely vaccination with MMR combined live attenuated vaccine in non-contraindicated cases is of great significance and importance in maintaining one’s health. If you feel unwell after vaccination, you should seek medical advice promptly.