Botox for Sinus Headache Caused by Vacuum Swelling Pressure?

As sinus headaches are caused by negative pressure causing the bony layers of the sinuses to be pressed in and the nerve endings transmit this force as pain, Botox which lessens muscle contraction would not be expected to minimize sinus headaches.

Botox works great for headaches caused by muscle tension problems.  A true sinus headache would not go away wtih Botox.  However, there are many headaches that patients and physicians refer to as "sinus headaches" that have nothing to do with the sinuses.  This may be the case with your headaches.  I would be evaluated by a facial plastic surgeon with background training in otolaryngology (ear, nose, and throat).  He or she will be able to evaluate your sinuses to determine if your sinuses may be causing your symptoms.  If they are found to not be the cause of your symptoms, then, if indicated, this surgeon could also perform the Botox injections.

Unfortunately there is no indication that Botox can relieve sinus headaches.  The main use of Botox in treatment of headaches has been focused on Migraines for which it seems to work well.  However, if you do suffer from sinus headaches there are various options now available for you.  You first need to be evaluated by an Ear, Nose and Throat specialist and have a CT scan of your sinuses.  Your ENT might then be able to offer you non-invasive procedures such as balloon sinuplasty to open up the sinuses and relieve the pressure.