I had botox on my forehead 4 times in my life in the last 2 years, the last time being in Aug 2012, all in a clinic in Seattle. In the last year I noticed one eyebrow is lower than the other. I looked at pictures of myself from 10 years ago, 2 and 3 years ago and I did not have this before. If I use my muscle to raise the eyebrow then it evens out but otherwise they are definitely uneven. Did botox give me permanent ptosis or is this something more serious and unrelated?

Sorry to hear that you had a drooping eyebrow after a Botox treatment. Brow asymmetry often represents natural variation is not Botox related. My guess is that you have natural asymmetry of your brow position. As you age, this may become more obvious. For patients with any hint of brow ptosis, I typically treat the 'brow depressor' muscles with Botox (glabella and lateral orbicularis muscles) and leave the frontalis muscles alone (brow elevators). We offer experienced and consistent Botox injections in our Seattle area cosmetic surgery clinic.