Any filler can cause swelling or bruising. usually this is avoided or minimized by avoiding aspirin, ibuprofen or other medications that can worsen bleeding, using ice prior to and immediately after injection and by having a doctor with a good injection technique. Sometimes despite all best efforts there will be bruising. The usual bruise can last 3-7days depending upon the patient. Swelling from fillers usually subsides over 2-3 days.
If there are bumps or lumps that persist beyond the first week or if you see a bluish color to the skin, you should consider that they are from too much filler or filler placed too close to the skin surface. In these situations you can reverse or diminish the bumps using an enzyme called hyaluronidase. NOTE - This only works for hyaluronic acid fillers ( Restylane, Juvederm etc). A small amount of this enzyme injected into the bump will dissolve the excess product and soften the lump.
If you think this is your case then consult your physician for evaluation and possible injection with hyaluronidase.
