Sorry to hear about droopy eyebrows. Unfortunately, it can take 2-4 months for it to resolve. The good news is that it always does. Always seek a board certified injector (Dermatologist, Plastic Surgeon, Facial Plastic Surgeon) who has extensive experience and can help if an adverse event occurs. Good luck.
Eyebrow droopiness after Botox can last up to 3 months, but can potentially improve after 4-6 weeks. In the meantime, an eye drop called Iodipine can help raise the eyelids to improve vision. The droop generally occurs from too much Botox, and/or placement too close to the brow. Also, if you have a pre existing ptosis, a brow lift should be discussed with your plastic surgeon. I wish you the best!