Left with Swollen Feeling Months After Botox

AT this point, I would recommend seeing an ENT for a full evaluation of all possible causes for your symptoms. This may warrant neurologic testing as well as diagnositic radiologic imaging

8 units of Botox for the DAO is quite huge. Depending on the location of the injection, possibly adjacent muscles such as the masseter muscle might have been affected only on one side which might malalign your jaw and throw off your bite. If you're not moving the jaw as much, then possibly you're not aerating the middle ear as much as normal (via the eustachian tube) and the eardrum might show water build up in the middle ear which might create some symptoms.  See an ENT doctor to help minimize your symptoms, and possibly a dentist, and you may notice improvement in a month or two, IF this is related to the Botox treatment.  I certainly can not be sure of the cause and effect.

BOTOX can make certain areas feel a bit different than they did before the product was injected. But, it doesn’t really cause swelling. It may just feel like some muscles are a little heavier but they are probably not actually swollen.