What should you know about fluorouracil on warts?

A dermatologist may consider fluorouracil when a wart is difficult to treat or when another approach is unsuitable. The medicine is applied only as directed, because healthy skin can also become red, sore, scaly, or eroded. Not every rough growth is a wart; a changing, bleeding, unusually painful, or uncertain lesion needs diagnosis before treatment. The location matters too: skin on the face, genitals, hands, and feet may need different planning. Treatment response is judged over time rather than by discomfort alone.

Follow the prescribed amount, schedule, and application area. Wash your hands after applying it, keep it away from eyes and mucous membranes, and do not cover the site unless your prescriber specifically advises this. Protect nearby healthy skin as instructed and avoid picking, shaving across, or sharing towels used on the wart. If irritation becomes difficult to tolerate, contact the prescribing clinician before changing the schedule. Other options may include cryotherapy, electrosurgery, or a procedure designed for wart removal, depending on the diagnosis and site.

Contact your clinician for spreading redness, severe pain, extensive raw skin, pus, fever, or an allergic-looking rash. Seek urgent help if the medicine enters an eye, causes facial swelling, or breathing becomes difficult. Ask for reassessment if the lesion enlarges, changes colour, bleeds without clear injury, or fails to behave like the wart your clinician diagnosed.

Why is fluorouracil suitable for this wart? Which skin should receive it, and what reaction is expected? What should I do if the surrounding skin becomes sore? When should the lesion be checked again, and what alternatives would fit its location?