3 days post Botox and I've got extreme swelling of eye and brow area. (Photo)

There can be some swelling with injections, but this may be due to your sunburn. If it persists, I recommend following up with your Doctor. Venus legacy, icing and cold compresses may give improvement. Best, Dr. Emer

Botox has a long track record of blocking nerve to muscle transmission and thus resulting in smoother skin with fewer wrinkles due to less animation. Pure Botox is FDA approved and very safe. Swelling and  erythema always raise the question of micro contamination. It is not unreasonable to return to your Plastic Surgeon who treated you and inquire as to this possibility and treatment options that include conservative measures such as antihistamines and even possible steroid. Seeking medical help with these concerns is appropriate 

Thank you for your question and photos. It’s not unusual for BOTOX® to produce some minor swelling for a few days to 1 week after injections. However, your swelling very well may be more related to the sun exposure you recently had than your BOTOX® injections. Continue to use cold compresses and keep the area well moisturized with aloe vera gel. If the swelling doesn’t subside in a few more days, follow up with your injector.