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Can antihistamines Help Stop Allergic reactions to covid-19 vaccines?

2021-08-02 12:21:01

Dr. Fariba Azadikhah
Reviewed by:
Dr. Fariba Azadikhah

Many people experience a range of side effects from COVID-19 vaccines, including soreness at the injection site, fatigue, or headache, that resolve on their own within a day or two. Although there is a low risk of having an allergic reaction to the vaccine, if you experience an allergy in your first dose, it’s recommended to take an antihistamine before your second dose.

The paper published in JAMA estimated the safety of second doses in people who experienced an allergic reaction after the first dose. They found that people’s symptoms were decreased or solved with antihistamine treatment.

The study was based on 186 individuals which whom had at last one allergic reaction, such as flushing, hives, or shortness of breath, within 4 hours after receiving their first dose.

159 people received the second dose. Of this 159, 47 were given antihistamine medications before the shot. All individuals, including 19 people who experienced anaphylaxis after the first dose, tolerated the second dose. Thirty-two experienced allergy symptoms after their second dose that were self-limited and resolved with antihistamines.

 

Antihistamine treatment can help prevent allergy symptoms like hives, shortness of breath, and flushing. Anyone who developed a reaction after their first dose plus those with a history of reactions to vaccines should work with an allergy specialist to get fully vaccinated.

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