Swelling after dermal fillers is normal and to be expected to begin within an hour of your appointment lasting up to 72 hours. The severity of post procedure swelling will depend on the area treated and the product used. Lips and under eyes will swell significantly and can be improved by sleeping on extra pillows, drinking a moderate amount of water, and avoiding salty foods. Lips can swell up to 3 times their normal size and is not an indicator of an allergy. Cheeks treated with Radiesse will swell more significantly and more sharply than other products. Grace Medical Aesthetics will send you home with an icepack for your comfort and convenience to minimize the onset swelling. For more post-care information, click here.