Needle marks, small bruises and swelling can appear and usually settle within a few days. Rarely, a drooping eyelid, an uneven expression or discomfort when smiling can occur, so we use lower doses where many expression muscles lie. In very rare cases, difficulty swallowing or breathing can occur; if so, seek emergency care right away.
We do not perform this procedure during pregnancy or breastfeeding, or in people with neuromuscular conditions such as myasthenia gravis. Please tell us in advance if you take antibiotics or blood-thinning medication.