Can Botox That is Injected Between Eyebrows Go into Sinuses and Drain Down Throat ?

...you have a personal history of a facial fracture, frontal sinus fracture, or frontal sinus surgery. In any of these scenarios, you could theoretically have a dehiscence or absence of the bony wall of your frontal sinus. This could make it anatomically possible for a 30 guage needle to penetrate your frontal sinus, and allow Botox to drain into your throat.

Dr. Joseph

I don't see a connection to the sinuses from botox injections, although theoretically if someone were to inject near the corner of the eyelids, deeply, so that the fluid would get in the tear duct (I have never heard of this!) then it could drain down the throat. I can't imagine the latter occurring, nor the possibility of drainage into the sinuses.

Unless you had a previous fracture or dehiscence of your frontal sinus bone, and unless your doctor injected the Botox through the fracture edges or fibrous union into the frontal sinus, Botox cannot get in your frontal sinuses.  This scenario would be so exceedingly unlikely that it should not concern you.  Botox, however, can affect swallowing if used in extremely high doses (overdose situations), which are not used in cosmetic situations.  To avoid unexpected results from Botox, make sure that your doctor is highly experienced in facial anatomy and in Botox administration and titration.

No this cannot happen.  Botox cannot get into the sinuses when it is injected in between the eyebrows.

Your Botox injections would have to go through all of the soft tissues and then through bone to enter your sinuses. Sinuses do indeed drain into your nasopharynx and eventually throat, but so do tears via the lacrimal system. If you got a bit teary-eyed from your injections, this drains directly into the nose and throat, giving you the sensation you describe.

The same thing happens at a sad part in a movie--that is why people start sniffling: tears down the nose and throat!

Not Botox--tears! Cheers!

It is highly unlikely that your Botox treatment is
the reason for the discomfort you are experiencing in your sinuses. It may be a
coincidence that the two events have overlapped each other, but there is no
correlation between the injection and the throat/sinuses. If you have noticed
your sinuses feeling different or somehow unpleasant recently, my best
recommendation would be to visit an ENT doctor in your region and to evaluate
your condition in-person. 

The likelihood of botox going into sinuses would be incredibly rare (e.g. 1 in a million if not less). This concern or any other related to side effects would be minimized by making sure to be treated by an expert injector such as a dermatologist.

It would be highly unlikely that Botox injected between the eyebrows would migrate to the sinus cavities.  

Botox injected into the muscles of the forehead will not have any access to the sinuses. You need not be concerned.

Botox injected in the middle of the eyebrows is injected into the muscles of animation and should not be able to enter the nasal sinuses or the throat.