Systemic Dermal Filler Risks
Since bovine collagen dermal fillers have been discontinued, the chances of having an allergic reaction are very small. However, some fillers are derived from avian tissue or contain sulfa drugs. Skin testing may be recommended if there is a chance that you might be allergic to any substance in the filler. Even hyaluronic acid fillers, which are usually non-reactive, can cause a reaction in sensitive patients. Allergic reactions can usually be treated successfully with steroid injections in the affected area.