Why Do I Get Infection After Juvederm Injections?

an infection after an injectable is uncommon but definitely possible. while it is horrible whlie it is happening, if managed properly with drainage and AB's there should be no long term issue. the weird thing is that it happened a second time. based on your experience this does not appear to be a herpes outbreak. the natural history of a herpes outbreak is usually a prodrome (symptoms prior to anything visible) of intense itching followed by a vesicualar (bubble like) eruption with exquisite tenderness.  the resolution can take weeks and generally doesn't improve on antibiotics unless it gets infected as well. bottom line is if you have a history of cold sores you should take valtrex 2-3 days prior to injection. if you don't then the problem is the injectable or technique.  I would encourage your physician to contact allergan especially if the two syringes were from the same lot to ensure there are issues in the manufacturing. unfortunately, the texchnique used must be re-evaluated and I would consider a different injector/or injectable in case you are a having a juvederm specific reaction. also if you had juvederm ultra plus it might be too "crosslinked" for the mobile area of your lips (especially if injected too superficially). wait at least 3 months to allow your tissue to recover and then switch injectors and use restylane and see if that takes care of the probelm. also this all assumes you actually used the real juvederm with a reputable injector. remember there are all sorts of black market knockoffs being peddled to low quality injectors. if the price was too good that is probably the probelm. be smart. good luck

There are two possibilities here:

1. It may be a herpes eruption.  If you get herpes or cold sores on your lips, a filler injection can stimulate an eruption, as herpes can be stimulated by any kind of trauma, including sun exposure.  So you need prophylactic antiviral medication for three days before, on the day of and three days after the injection.

2. Herpes is the more likely however, herpes generally does not produce "massive amounts of pus" as per your description.  It can produce all the other symptoms, like swelling, pain, but usually has vesicles that turn to small pustules or erosions and crust.  Large amounts of pus is more likely to be a bacterial infection.  Two points to address here:

a. the technique used for injection must be sterile, including cleaning the area well and using sterile equipment for injections - a new syringe of filler, a new needle, etc.  Sounds silly, right?  However, there are many patients that have suffered bad side effects from unethical or illegal injection practices.  Make sure your injecting physician is a board certified dermatologist or plastic surgeon with training and experience in filler injections.

b. injections should never be performed through any area of infection or rash.  If there are such areas prior to injections, they must be cleared.  Otherwise the risk of infection goes up significantly.