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Dermatology

After Mohs Surgery: The Wound-Care Questions Patients Text at Night

Published June 29, 2026 · PrepQ LLC · physician-written patient education

Mohs surgery is same-day, the patient goes home with a repaired wound and a page of instructions, and then the evening questions begin. Is this much bleeding normal? The area around my eye is bruised and swollen — should I worry? When do I change the dressing? Dermatology practices that do a high volume of skin-cancer surgery field these questions constantly, and almost all of them have calm, standard answers.

Bleeding is the most common after-hours call and the one where clear instructions prevent an unnecessary ER trip. A small amount of oozing in the first day is common. The right patient-education answer walks the patient through the fix: sit down, and press firmly and continuously on the site for a full fifteen minutes without peeking, and repeat once if needed. It also names the line that means call now — bleeding that soaks through and won’t stop with sustained pressure.

Bruising and swelling around the eyes and forehead alarm patients out of proportion to the risk. After surgery on the face, gravity pulls bruising downward, so a forehead or temple procedure can produce a black eye a day or two later. Explaining that this is expected, and that ice and keeping the head elevated help, turns a frightened late-night call into reassurance.

Dressing changes and “is this infected” are the second-week questions. Most Mohs wounds are kept covered with ointment and a clean dressing for a set number of days, changed on a schedule the practice specifies. Some redness right at the wound edge is normal healing; spreading redness, warmth, increasing pain after the first few days, pus, or fever is not, and should prompt a call. A physician-written answer draws that line clearly so patients know which is which.

In PrepQ, every one of these answers is written by a physician and approved by the dermatology practice, which sets its own dressing schedule, ointment preference, and suture-removal timing. Urgent messages — uncontrolled bleeding, signs of infection, vision changes after eyelid surgery — are escalated to the office or 911 instead of being answered by software. The patient gets an accurate answer the moment they are anxious, and the practice stops fielding the same handful of post-Mohs calls every evening.

Common questions, answered

A sample of PrepQ’s physician-reviewed dermatology answers. Subscribing practices review and approve every answer, and can customize it to their protocols, before any patient sees it.

How much bleeding is normal after Mohs surgery?
A small amount of oozing in the first day is common. If it is actively bleeding, sit down and press firmly and continuously on the site for a full 15 minutes without lifting to check; repeat once if needed. Bleeding that soaks through and won’t stop with sustained pressure means call your office or seek care.
Why do I have a black eye after surgery on my forehead?
After facial surgery, gravity pulls bruising and swelling downward, so a forehead or temple procedure can cause bruising around the eyes a day or two later. This is expected; ice and keeping your head elevated help.
When do I change the bandage after Mohs surgery?
Most wounds are kept covered with ointment and a clean dressing, changed on the schedule your practice specifies — often starting a day or two after surgery. Follow the exact instructions your dermatology team gave you.
How do I know if my wound is infected?
Some redness right at the wound edge is normal healing. Spreading redness, warmth, increasing pain after the first few days, pus, or fever can signal infection and should prompt a call to your office.

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