2.5. Safety
swelling, pain
ADVERSE EVENTS
Both therapies proved to be safe; the few adverse events recorded were mild and self-limiting until 24 h after injections. Patients treated with OT reported adverse events in 11% of cases. The most reported symptom was the transient sensation of swelling immediately after the procedure and for a few hours thereafter. In the HA group, 10% of patients complained of self-limiting pain and a swollen feeling after injections.