50 units of Botox into my right masseter muscle and now I look like I've had a stroke. Is this normal? Will it go away? (Photo)

The dose is a bit on the high side - usually we start with 25U per side. You have some spillage of the botox to the adjacent smile muscles. It will take about 2-3mo to get the smile mainly back to normal and about 6mo -9mo to get the masseter to grow back.

If you're having problems after your injections I would discuss this with your injector.  Injection of the masseter muscles can be associated with a number of side effects.  It is not clear whether your left masseter muscle was injected or not.  It is also possible to affect other facial muscles inadvertently when the masseter is injected.  The effects of Botox clearly will wear off but I would get an opinion from an expert injector who has a great deal of experience treating masseter muscles with neuromodulators.

Thank you for your question. Typically patients have the masseter muscle injected bilaterally. It does appear as though you are experiencing some asymmetry. It will take approx. 3 months for the Botox to wear away, at that time your jawline and mouth should return to its original shape. It may be worth while to schedule a consultation with an expert injector to be assessed for your other symptoms. Best,

I agree with Dr. Weiner.  I am not sure what the rational is for a unilateral masseter injection.  The masseter is a very strong set of muscles that control your ability to close your jaw.  Injecting only one side leads to dominance of the contralateral side and subsequent effects on your bite.  Likewise, if your smile has been altered, some of the muscles of facial animation may have been affected.  This requires further evaluation by a Physician experienced in use of Botox in the lwoer face

I am sorry that you have had a bad experience.  I would not recommend injection of only one masseter muscle.  The injection of only one muscle will create an imbalance between the sides which may cause the abnormal sensations that you are experiencing.  Additionally, if your smile has changed the muscles of facial expression may have also been affected and not only the masseter.  The good news is that Botox is temporary.  The affects of the injections will likely start to dissipate in a few weeks and completely resolve in 3-4 months and there should not be any long term effects.  Cody Koch, MD PhD

This is definitely not normal but will go away. It appears that your facial muscles on the right side are weak but functioning. This suggests that this effect might wear off in the next 1-2 months. Masseter injections that are too heavy handed or placed beyond the masseter into other facial muscles can cause this type of issue. I have successfully treated a handful of people who had this issue with previous injectors and it has never recurred. The product always works and treatment complications are usually injector related. I hope this information is helpful for you.Stephen Weber MD, FACSDenver Facial Plastic Surgeon

Poorly done and understood masseter injection/injector, sorry. Good news this will wear off over the next 4 to 6 months. I only use 30 to 40 units per side in a 2 weeks series of visits...  

I don't think this person has much experience.  Putting too much Botox (above my limit of 15-40) in only one side will cause a torsion of the jaw and put undo stress on the jaw joint (TMJ).  It also appears he/she affected some of the facial muscles too, because your smile is off.  Either the zygomaticus or the risorius is affected.  It will improve but it may take 3-4 months.

My first question pertains to as to why you had one side treated.Regardless, the Botox will take two and a half to three and half months to wear off. 50 units is a very large dose even for the masseter muscle.Your options are to wait it out or to treat the other side to make it even.This is the first time I've had the opportunity to see a patient treated on one side only with a Botox masseter injection.From a professional level, I appreciate the photo as it is educational to me.Time will make it better or consider treating the other side as well to make it even.Best of luck,Mats Hagstrom, M.D.