What does Botox feel like in the forehead? Is there a constant discomfort?

The few things to remember about Botox and it's after-effects are:There can be a mild headache in some people for a day or twoThe effects on the muscle take about a week to workBruising is the most common side effect, which is typically small and temporary (about a week at the most)Hope this helps!

Thanks for this question. There's temporary fullness for some patients, a heaviness and even mild headaches. I am not aware of these feelings lasting more than a few days so your friend's experience is rather unusual. I personally have been injected with Dysport and Botox and have never experienced symptoms lasting more than 24 hours.Best wishes, Dr. Aldo