Side effects reported in clinical trials include facial weakness, drooping of the eyelid and drooping of the eyebrows. Other side effects included localized pain, swelling, redness and bruising at the injection site. Rarely, injections have caused double vision, dry eyes, or difficulty swallowing or breathing. According to research published in Aesthetics, long-acting dermal fillers have higher rates of complications, such as infections and nodules.
Your healthcare provider will recommend a specific type of filler or fillers and review possible side effects and recovery time. Adverse side effects usually last as long as the facial filler is on the skin, so although some have short-term side effects, more permanent fillers can cause lifelong adverse effects. In addition, there are rare side effects, such as infection, leakage of the filler through the injection site, nodules around the injection site, granulomas, movement of the filler under the skin, and injury to the blood vessels.