You will be discharged immediately after the injections and you can resume your daily activities. Mild edema is present for 2 to 4 days. Bruises are rare. The results of hyaluronic acid injections are visible immediately and last 9 to 12 months. The effects of botulinum toxin injections are visible after one week and last for about 6 to 8 months. The results obtained will be maintained by iterative injections, increasingly spaced out.