I'm Having Difficulty Swallowing Within Minutes After Botox Injections.

I would feel more comfortable that your swallowing difficulty is related to the BOTOX if your told me that the effect developed hours to a day after your treatment.  However, difficulty swallowing is a well describe systemic side effect of BOTOX.  This reaction must be interpreted as a side effect of the treatment.  Why know when this was never a problem before?  There may never be an answer for this question.  I recommend that you get assessed immediately by your primary care physician.  If your symptoms feel life threatening, please call 911 and be taken to an emergency for an immediate assessment.  If your symptoms do not feel that severe, and you can't be seen by for doctor, have someone drive you to an emergency room to be assessed.  A neurologist and possibly a sleep apnea specialist maybe helpful.  Usually people with this systemic effect do OK until lying down to sleep.  Then it can cause a sensation of waking up suddenly.  There are physical recommendations that can be followed to help the situation which can include elevating the head of the bed.  Eventually the symptoms subside as the treatment effect begins to diminish.  You may decide based on this experience to avoid treatment in the future.

If you were injected in your forehead, this should not affect swallowing. Injections into the platysma (for neck bands) can rarely cause some difficulty swallowing.