The last injection of the five-link combination had a strong reaction

As children grow up, they need to be injected with various vaccines to actively prevent various diseases. The pentavalent vaccine is a common one, which is mainly used to deal with diphtheria, whooping cough, tetanus, polio, and Haemophilus influenzae. The pentavalent vaccine, like other vaccines, may cause adverse reactions. The reaction to the last shot of the pentavalent vaccine is strong. You need to know which situations require timely medical treatment. When the situation is special, it must be resolved in a timely manner and never delayed.

Adverse reactions to pentavalent vaccine

1. Local reaction

Symptoms: Local reactions and mild systemic reactions are the most common side effects after vaccination. Most of them are mild and heal quickly.

Response: No special treatment required. For general local reactions, rest and local hot compresses are enough to restore the patient to normal. However, for local reactions to BCG, hot compresses should not be used. Instead, 1% gentian violet solution should be applied to the ulcer.

2. Systemic reactions

Symptoms: Body temperature rises after vaccination, mostly below 38.5℃, and sometimes systemic symptoms such as headache, dizziness, fear of cold, weakness, nausea, vomiting, abdominal pain, diarrhea, etc.

Response: Generally no special treatment is required. It usually disappears within 1 to 2 days and rarely lasts for more than 3 days. If the symptoms are obvious, they need to be treated accordingly.

3. Allergic reaction

Symptoms: may occur within a few minutes or hours after vaccination, manifested as urticaria, difficulty breathing, pale face, dizziness, wheezing, rapid heartbeat, shock, etc.

Response: Although the incidence of allergic reactions is extremely low, roughly 1/500,000 or lower, the consequences are serious. Therefore, before vaccination, the doctor will carefully ask about the child's allergy history and reactions after previous vaccinations. If an allergic reaction occurs, go to the hospital for emergency treatment immediately.

Which reactions require medical attention?

1. The baby's fever is above 38.5℃ and the high fever does not subside.

2. The injection site is severely red and swollen, with obvious pain or suppuration.

3. The baby cries abnormally within 1 to 2 days after vaccination, and the reason cannot be found.

4. Symptoms such as allergic rash, allergic purpura, anaphylactic shock, and angioedema may occur after vaccination.