Mohs surgery wound care: where hospitals genuinely disagree
Search this question and most pages give you one confident instruction. We checked several real hospital sources for this hub and found a genuine, head-on disagreement on the single most common wound-care question — not a data gap on this site's part, and not one hospital getting it wrong. Two real institutions, two opposite instructions. The right one for you is whatever your own surgeon's discharge sheet says, not the first answer a search result hands you.
Two named, credentialed sources instruct antibiotic ointment for a healing Mohs wound; one academic medical center's own handbook explicitly instructs against it, twice, in favor of plain petroleum jelly.
This is real, documented practice variation across live hospital and named-physician sources — not a data gap on this site's part. Every section below carries the same disclaimer: this varies by surgeon, so follow your own discharge instructions over any general rule on this page.
Source: University of Mississippi Medical Center, Northwell Health (Dr. Bhuvanesh Singh), and Dartmouth-Hitchcock Medical Center patient instructions, all fetched live 2026-08-06
Antibiotic ointment or petroleum jelly: the three real positions
| Source | Stated position | Detail |
|---|---|---|
| University of Mississippi Medical Center | Apply antibiotic ointment (Polysporin or bacitracin), once or twice daily | Named specifically, after the initial 48-hour dressing comes off. |
| Northwell Health — Dr. Bhuvanesh Singh, Skin Cancer Program surgical director | A thin layer of antibiotic ointment (bacitracin), for the first two days | A second, independently sourced instruction to use antibiotic ointment — from a named, credentialed physician. |
| Dartmouth-Hitchcock Medical Center | Avoid antibiotic ointment entirely; use plain petroleum jelly instead | States this twice in its own patient handbook, in nearly identical language both times. |
“After 48 hours, you may shower with the dressing in place, then remove. Apply Polysporin ointment and a loose dressing… Remember to keep the surgery site protected with antibiotic ointment (i.e., Polysporin or Bacitracin). Do this once or twice daily, washing your hands before applying the ointment each time.”
— University of Mississippi Medical Center, Postoperative Care of Mohs Surgery — Excisions (source)“For at least the first two days, avoid getting the wound wet… Singh recommends using a thin layer of antibiotic ointment (like bacitracin) to protect against infection.”
— Bhuvanesh Singh, MD, surgical director, Skin Cancer Program at Northwell Cancer Institute (source)“Smoking will affect your scar! We do not recommend special scar creams, essential oils, or antibiotic ointments to your wounds as these will not affect the appearance of your scar and could potentially harm the area… Avoid antibiotic ointments. Stick with your wound care instructions… Use a cotton swab to apply a generous layer of petroleum jelly over the incision lines.”
— Dartmouth-Hitchcock Medical Center, Mohs Micrographic Surgery Patient Handbook (source)The honest bottom line
Two named, credentialed sources — a Mississippi academic medical center's ENT department and a named Northwell surgical director — independently recommend antibiotic ointment. A New Hampshire academic medical center's own dermatology handbook says the opposite, twice, in its own words. Neither is wrong; they're different clinical philosophies from different institutions, treating the same category of surgery. This site doesn't adjudicate which is right for you — that call belongs to your own surgeon, and the instruction on your own discharge sheet is the one to follow.
A smaller, but real, second disagreement: lifting limits
The same two-institution pattern shows up again on a lower-stakes question: how much you can lift while your Mohs incision heals.
| Hospital | Stated position | Detail |
|---|---|---|
| Dartmouth-Hitchcock Medical Center | No more than 10 lbs, for 1-2 weeks | The one specific, numeric lifting limit found across the sources checked for this hub. |
| University of Mississippi Medical Center | No heavy lifting or bending from the waist, while sutures are in place | General guidance, no specific weight given. |
Dartmouth-Hitchcock's handbook states it plainly: “Do not lift anything more than 10 pounds for 1 to 2 weeks.” UMMC's own discharge sheet is looser: “No heavy lifting or bending from the waist as long as the sutures are in place” — no specific weight named. Both are real, current instructions; ask your own surgeon which number, if any, applies to your case.
A few more places hospitals genuinely differ
- Initial dressing timing. UCLA's own instructions: the pressure bandage placed at the end of surgery “will remain on until the next day.” UMMC's own instructions: “Leave the initial dressing on for 48 hours or as instructed.” A day-long gap between two real hospital instructions for the same first step.
- Showering. Dartmouth-Hitchcock: shower once the initial bandage comes off, 24-48 hours after surgery, avoiding direct water pressure on the site until stitches are removed. UMMC: after 48 hours, shower with the dressing in place, then remove and re-dress. Both agree on the broader rule — no swimming, hot tubs, or direct water pressure until the wound has closed — but land on slightly different specific windows.
- Scar massage. Dartmouth-Hitchcock names a specific technique, not a product: once a firm scar area is past 2 months old, gently massaging it 3 times a day, 3 minutes each time, can help it soften — helpful up to 6 months out, and explicitly not to be started earlier. No other source checked for this hub names this technique, so it's presented here as one hospital's own guidance, not a universal instruction.
Go deeper
Sources
- University of Mississippi Medical Center, Postoperative Care of Mohs Surgery - Excisions — the antibiotic-ointment, dressing-timing, showering, and lifting-restriction citations; fetched live 2026-08-06
- Northwell Health / The Well, "Mohs Surgery Recovery: Your 48-Hour Game Plan" (Bhuvanesh Singh, MD) — the second antibiotic-ointment citation, from a named surgical director; fetched live 2026-08-06
- Dartmouth-Hitchcock Medical Center, Mohs Micrographic Surgery Patient Handbook (PDF) — the petroleum-jelly, lifting-limit, showering, and scar-massage citations; fetched + PDF-extracted live 2026-08-06
- UCLA Health / UCLA Dermatology, Post-Operative Wound Care Instructions (PDF) — the initial-dressing-timing citation; fetched + PDF-extracted live 2026-08-06
- VerifiedCareData dataset.json (CC-BY-4.0) — every citation above traces to a live-fetched primary source, listed here