In general, JUVÉDERM fillers are considered safe and minimal side effects are observed. You may experience the following side effects post treatment: redness itching bruising at injection sites swelling and sensitivity dryness You should avoid alcoholic beverages, exposure to heat and vigorous exercise for the first 24 hours after the procedure. Exposure to any of these would cause temporary swelling, redness or itching at the injection site. Apply ice to avoid swelling. Ask your doctor how long you should wait before applying makeup or any product to avoid a reaction. Although very rare, sometimes more serious complications can occur due to injection of hyaluronic filler into a blood vessel, which are as follows: visual abnormalities blindness permanent scars delayed alergic reations