Thank you for your question. The most common side effects of dermal filler injection are swelling, bruising, and redness. Beyond this, you get into problems with injection technique and improper selection of filler to be used. It is best to see an experienced injector to get the best outcome.I hope this was helpful - Dr. Moore.
The most common side effects are injection site bruising, swelling and redness. These usually resolve on their own over the first few days to week after treatment. Lumps and bumps are much less common with good injection technique. Infection is rare when using FDA approved products and clean/sterile injection technique.