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What are the adverse reactions of the measles, mumps, and rubella (MMR) vaccine?

Oct 18, 2023 Source: Cainiu Health
Dr. Lu Haiying
Introduction
In general, adverse reactions to the measles, mumps, and rubella (MMR) vaccine may include redness, swelling, and pain at the injection site, fatigue, joint pain, allergic reactions, and fever. Patients are advised to receive symptomatic treatment as directed by their healthcare provider. Typically, within 24 hours after MMR vaccination, pain or tenderness at the injection site may occur, and these symptoms usually resolve spontaneously within 2 to 3 days after vaccination.

Generally, adverse reactions to the measles, mumps, and rubella (MMR) vaccine may include redness, swelling, and pain at the injection site, fatigue, joint pain, allergic reactions, and fever. Patients are advised to receive symptomatic treatment as directed by a physician. Specific analysis is as follows:

1. Redness, swelling, and pain at the injection site

In most cases, within 24 hours after MMR vaccination, the injection site may experience pain or tenderness. These symptoms usually resolve spontaneously within 2–3 days after vaccination.

2. Fatigue

Some individuals may feel fatigued or weak after receiving the MMR vaccine, accompanied by mild discomfort. This reaction is normal, typically mild, and resolves quickly.

3. Joint pain

Some patients may develop mild joint pain following MMR vaccination. This discomfort is usually temporary and can be relieved with rest. If necessary, medications such as diclofenac sodium sustained-release capsules or loxoprofen sodium tablets may be used under medical guidance.

4. Allergic reactions

A very small number of individuals may develop allergic reactions after vaccination, primarily manifesting as skin rashes. In more severe cases, allergic reactions may lead to purpura or laryngeal edema, which could seriously threaten life and health. Treatment may include medications such as promethazine hydrochloride tablets or loratadine capsules, as directed by a physician.

5. Fever

After MMR vaccination, some recipients may experience mild fever. It is recommended to rest adequately, drink plenty of warm water, and stay warm. If necessary, symptomatic relief can be achieved with medications such as analgesic tablets or acetaminophen tablets, as directed by a physician.

If any discomfort occurs after MMR vaccination, individuals should seek prompt medical attention to avoid delays in diagnosis and treatment.

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