What should I do if I have a fever after receiving the measles vaccine?

When a fever occurs after receiving the measles-rubella vaccine, the first step is to measure body temperature. If the axillary temperature is below 38.5°C, immediate medication is not necessary. Instead, physical cooling methods can be used, such as applying cold compresses with ice packs to areas like the armpits, neck, and groin, or using lukewarm water to sponge the body to help reduce the fever. At the same time, maintaining adequate rest and drinking plenty of fluids can also help alleviate discomfort. However, if the axillary temperature exceeds 38.5°C, or if the fever persists for a prolonged period and physical cooling measures are ineffective, antipyretic medications such as ibuprofen suspension or acetaminophen may be considered to relieve discomfort caused by high fever. If the fever does not subside or is accompanied by other severe symptoms, prompt medical attention is recommended so that a healthcare provider can offer professional treatment advice based on the individual's specific condition.