how long do flu like symptoms last after botox?
FLS reported as most common AEs in trial. FLS reported in 3 pts (1.7%), appeared 7–10 days after injection with symptoms lasting 1–2 weeks. FLS reported in 2 patients (5.1%) lasting < 2 days. In Group 3, most common AEs reported were prolonged weakness of treated limb, FLS and edema.