The bruising and swelling can occur with injection of the thin skinned area under the eyes. We pretreat patients with something called a Bruisefighter which contains Arnica Montana, Bromelain and pycnogenol.
The injection of fillers is often associated with bruising
and swelling in the treatment area. The extent of the bruising is related to
the technique used, the location of the filler, and each person’s specific
anatomy. Swelling initially occurs due to the trauma of injection and subsequently occurs as the product attracts water to the
surrounding tissues. The swelling is often worse in the morning and improves
throughout the day. The swelling often lasts for few days to a few weeks. If
the swelling persists, however, improvement may be achieved by removing some of
the filler using hylaronidase. A detailed examination will help delineate the
best option. A formal consultation with a plastic surgeon is the next best
The very thin under eye area is delicate and easily bruises and swells after the injections. These results can last up to two weeks. If you take Arnica and ice this will lessen the amount of time these side effects last.
It is not uncommon to have swelling and bruising following ANY filler injection. Bruising after cosmetic injections can be related to medications you are taking in the days and weeks leading up to the injection (fish oil, Vitamin E, aspirin, motrin, aleve, ibufrofen, etc...), your anatomy, and/ or the injection technique. I tell all of my patients to use topical Arnica Montana, which is a natural over the counter gel, the moment that they see a bruise forming. It helps with swelling as well and gets rid of the bruising many days prior to not using anything at all. You can buy sublingual tablets as well. You should wait about 4 weeks before you scrutinize your results though -- swelling under the eyes can linger a bit. I wish you the best!
I would say that it is not normal, but possible, to have swelling and bruising under the eyes 4 days after a Belotero injection. Whenever anything is injected below the eyes, it is possible to get bruising and swelling. This does not happen all the time and does not necessarily mean that it would happen to you again if you had the treatment repeated in the future. It can take days to a few weeks for bruising and swelling to resolve, depending on the severity.
Depending upon the quality of your tissues and the technique that was used for injection, you might see some swelling, puffiness, and bruising under the eyes. This may last a couple of weeks in the more severe cases. Generally, techniques that produce more trauma to the tissues, such as repeated punctures with a needle for injection as opposed to the use of microcannulae which can be more accurate and less traumatic, can create more of this bruising and swelling. Additionally, if you are a person who normally experiences intermittent puffiness under your eyes, you may also see more intense swelling after injection than a person who does not. Follow up with the doctor that did your injections and see if there is anything other than ice, head elevation, and simply waiting it out needs to be done. Generally we don't make any judgments about the final result or any need to make adjustments until a week or more has gone by. Good luck.