Thanks for presenting this common problem for discussion. The problem of swelling after injection, either as "duck lips" or just "too big" lips, is related to the type of filler injected, the force of injection, the amount of filler injected, and most importantly, your reaction to the injection and to the filler. It is best to wait 2 weeks for all the forces acting on the lips to come to rest; if your concerns become worries before that time, then your doctor will want to help you with this issue. Ice and Benadryl for the first 48 hours is good practice. Removal of filler is rarely needed, but it can be done simply with hyaluronidase injections. I hope this was of benefit. Best, Dr. Kennedy