After receiving the 13-valent pneumonia vaccine, the redness, swelling and hardness at the site of vaccination may be a localized allergic reaction of the skin, which can be relieved by cold compresses in mild cases, and medication can be used in severe cases.
After vaccination, there may be a variety of adverse skin reactions, including redness, heat, rash, hardness, swelling, pain or itching and other discomforts at the site of vaccination, and usually such symptoms will appear a few minutes and a few hours after vaccination. Most skin reactions are self-limiting and may resolve spontaneously with cold compresses and clinical observation.
If these symptoms continue to worsen, medication may be needed to intervene. Glucocorticosteroids such as dexamethasone and antihistamines such as cyproheptadine can be used.
It is recommended to go to the hospital in case of the above symptoms; the above medications should be used under the supervision of a clinician; it is recommended to go to a specialized healthcare institution for vaccination, and to stay in the hospital for at least 30 minutes for observation after the vaccination is completed.