Pfizer - BioNTech (BNT162b2) COVID - 19 vaccine is the first vaccine to be approved for emergency use by FDA. The most commonly reported side effect of the BNT162b2 vaccination is mild-to-moderate pain at injection site, i.e. deltoid muscle. Injection site pain may be observed during and after vaccine injection, and severity of pain may vary according to the type of vaccine, patients age, sex, level of anxiety, needle size, injection site and technique and patient positioning. Vaccination pain is one of the reasons of vaccine hesitancy and World Health Organization (WHO) recommended various measures to mitigate pain at the time of vaccination. Exercise is one of the suggested methods to relieve the pain and anxiety in various conditions including vaccination site pain. However, we found no studies addressing injection site pain after the vaccination and pain associated with BNT162b2 vaccine. Aim of our study is to evaluate effectiveness of deltoid muscle exercises to relieve injection site pain observed after BNT162b2 vaccination.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
time to no pain at injection site or arm
Timeframe: within 5 days after vaccination