This is a double (physician and patient) blinded randomized controlled clinical trial in which patients who have undergone bilateral direct brow ptosis repair undergo a trial in which one of brow is injected with placebo 0.9% Normal Saline and the contra-lateral brow is injected with 0.3-0.6 mL over the entire brow of 50mg/mL 5-Fluorouracil sub-dermal injections. The researchers aim to investigate whether injecting 5-Fluorouracil preemptively will not only accelerate wound healing and decrease hypertrophic scar formation compared to placebo, but also improve overall scar appearance in a safe manner.