Could bad Botox effect take more than 6 months to wear off?

For most patients, the length of time a neuromodulator such as Botox will last approximately 4 months.  There are some exceptions:  crows feet seem to recover in 2-3 months,  when fewer units are used for various reasons, the length of control will be shorter.   I also refer to the 'frequent flyer' effect of Botox, where patients who are consistent and regular Botox'ers, the length of time between injections seems to lengthen.  I think this is due to several reasons, including muscle atrophy and that over time your brain literally stops trying to move those muscles as it did before.  Adverse reactions such as horizontal brows or lid droop do happen now and then and fortunately they tend to correct themselves earlier that full Botox recovery.  These events should be reported or demonstrated to your injector as these will allow for adjustment of dose and placement of product.

Thank you for your Q.Botox effect one way or another lasts 3-4 months.In my many years of using Botox, I have seen it work once for approximately 14 months, so it is VERY rare and this patient was clearly an outlier.BestDr Karamanoukian#RealSelf100 Member