I had 20 units of xeomin put in my forehead and between my brows. AEver since then, I have had persistent migraine headaches and tightness in my forehead and between the brows and behind my right eye I’ve had heavy painful pressure. The doctor who injected me pretty much dismissed what I was going through and said I looked great(even though I hated the results and looked noticeably angry). Thus injection was done almost six months ago.