3.4. Adverse events
dizziness, RA, numbness, pain
SUBCUTANEOUS HEMATOMA
In the RA group, four (11.43%) participants reported pain at needling sites, and two of them also reported subcutaneous hematoma around needling sites. In SA group, two (5.71%) participants reported dizziness, and one of them also reported pain at needling sites; another (2.86%) reported numbness in the arms. All AEs were considered mild by participants. Moreover, according to participants' self-reports, these AEs usually appeared after the needles were removed and gradually disappeared over the following 24–72 h. None of the participants withdrew due to AEs or required medical attention.