Can Botulinum Grow in the Injection Site Even After Sometime?

Dear Clavelmv

Botulinum would be the active bacteria.  It would be extraordinarily ill advised to be injected with the organism that makes botulinum toxin.  The toxin is a byproduct of the bacteria.  The manufactures takes steps to ensure there are no bacteria in the cosmetic product that is used to treat you.  What you get is the highly purified protein known as botulinum toxin A when you get a BOTOX service.  This product as a clinical effect for about 4 to 6 months after the treatment and then it is gone.  So I can assure you that there is not active bacteria from your treatment 2 years ago because you were never injected with bacteria in the first place.

What you are describing in an inclusion cyst.  This could have been caused by trapping a small bit of skin under the skin surface.  This could be caused by the needle used to inject your BOTOX treatment or from some other cause.  Cysts like this are very common.  I recommend getting assessed by a dermatologist.  Removing this cyst is a very simple office procedure when they are small.

Botox, Xeomin, and Dysport are all purified botulinum and there is really no way it could grow. In any case, this is a question for your injector.

Hi Clave.  The issue you are describing would not be related to a Botox injection.  Post treatment complications from Botox involve a saggy brow or eyelid, very slight swelling or bruising and redness around the injection site.  

Very rarely, you may have flu-like symptoms or even a headache shortly after.  Nothing like what you are describing.  

From what you've described, it doesn't sound like a side-effect (even short term), of Botox injection. If you've had any dermal filler in the area, that could be more likely but wouldn't necessarily harden up like you've said. I would consult with a reputable provider for best assessment of the area and what treatment options might be available to you.

First, Botox is not botulinum bacteria, so there is no risk of it growing and causing an infection directly. Botox is just the toxin excreted by the bacteria. Second, these growths, if they are cysts, could be from the injection alone, regardless of what was injected.  Rarely, cells from the surface of the body to be pushed under the surface during injection, where can form cysts.  But even just as likely, these just formed spontaneously and aren't related.