Is It More Beneficial to Sleep on One's Back After Botox Treatment?

Thank you for your question. I typically focus my aftercare on restricting activities that make you hot, sweaty or flushed: Examples include strenuous activities, alcohol, saunas, hot baths, etc… This will increase your chance of bruising. If no bruising, by the next day, the you should be good to go. If there is, then I recommend another day to make sure the bruise is not getting worse. I am not as worried about the not laying down after four hours or sleeping on one side versus the back..

I usually recommend that when you're sleeping, it's better to sleep on your back and keep your head elevated with several pillows to help diminish the swelling. 

Since we don't know of any studies that have been undertaken on this subject, it's safe to say that there is no right or wrong answer on this one.  As long as you are not lying down immediately after treatment (give it a few hours) you should be fine laying on your back or stomach.