Botox injected along the jawlines from below the cheeks all the way to sides of the chin caused no saliva production.

you likely have glands that were affected and there is nothing you can do till 2-3 months as the botox wears off.  sour mouth drops and dry mouth rinses can help.  Best, Dr. Emer.

Thank you for your question majo2015. I am sorry to hear about your situation. Botox is a purified protein used to address wrinkles associated with facial expression. In the lower face Botox can be placed along the jawline. This is called the Nefertiti lift. This relaxes the platysma muscle which pulls down on the jawline. This treatment can improve jawline definition. Botox can also be used to address submandibular salivary glands that produce excessive saliva. Injections here are close to those used for the Nefertiti lift. Most people enjoy the results of their Botox treatment for 3-4 months. After that the results (and side effects) are back to baseline. Please consult with a doctor for specific recommendations. Good luck!

The majority of saliva in the mouth is produced by the submandibular glands.  The parotid glands, which are physically larger, have a smaller role to play.  If Botox is injected directly into these glands, there is expected temporary reduction in the amount of saliva, hence a dry mouth is a possibility.  Sometimes, Botox is intentionally injected into these glands to improve cosmetic appearance when the glands are large and/or protuberant; if such a treatment were to be considered, then this would be discussed with the patient prior to treating.  And the risk of dry mouth would also be reviewed ahead of time.  The effects are not permanent and normal functioning glands are expected after a few months.