Post-Op Care in the Heat: Protecting Your Mohs Surgery Site This August

August in the desert is unforgiving, and a fresh Mohs surgery site feels it more than the rest of your skin. Healing tissue is far more vulnerable to ultraviolet (UV) damage, and the habits you keep during these first weeks influence how your scar looks for years. 

Research on Mohs patients shows that UV radiation can delay wound healing, darken the scar, and raise the risk of developing additional skin cancers.

Our board-certified dermatologists and Mohs surgeons at Vivida Dermatology guide patients through Mohs surgery recovery in one of the harshest summer climates in the country, with offices in Las Vegas and Henderson, Nevada, and St. George, Utah. These five tips can help you protect your surgical site while the heat is at its peak.

1. Understand why healing skin burns faster

New tissue at a surgical site lacks the mature, protective outer layer that shields the rest of your skin. It contains little of the melanin that normally absorbs UV rays, so even brief sun exposure can inflame the area, slow the repair process, and trigger the excess pigment production that turns a fading scar dark and prominent.

That discoloration, called post-inflammatory hyperpigmentation, can linger for years once it sets in. Sun protection during the early healing window is far easier than trying to fade a darkened scar later.

2. Keep the site covered and out of direct sun

For the first several weeks, physical coverage beats sunscreen on the wound itself. While the incision is still healing, sunscreen doesn’t belong on open or freshly closed skin, so rely on:

• Bandages or dressings as directed in your aftercare instructions
• A wide-brimmed hat for surgical sites on the face, scalp, or ears
• Lightweight, loose clothing over sites on the body
• Shade whenever you’re outdoors, especially from 10am to 4pm

Once your provider confirms the wound has closed, a broad-spectrum SPF 30 or higher becomes part of daily care for the site, reapplied every two hours outdoors. 

3. Manage heat, sweat, and swimming carefully

Heavy sweating can irritate a healing wound and loosen dressings, so schedule outdoor activities for early morning or evening and change damp bandages promptly. Skip strenuous exercise until your provider clears it, since exertion raises blood pressure and can stress the closure.

Pools, hot tubs, and lakes are off-limits until the wound fully closes. Soaking softens healing tissue and exposes it to bacteria, and chlorine can irritate the site. Stick to short showers and pat the area dry rather than rubbing.

4. Stay hydrated to support healing

Wound repair depends on well-hydrated tissue, and desert heat pulls moisture from your body quickly. Drinking water consistently throughout the day supports circulation and the cellular work of rebuilding skin. Alcohol and excessive caffeine work against you here, so keep both moderate while you recover.

5. Know the warning signs of a problem

Summer conditions can raise the risk of complications, so keep an eye on the site and call us promptly if you notice:

• Increasing redness, warmth, or swelling after the first few days
• Pus or cloudy drainage
• A foul odor from the wound
• Fever or chills
• Bleeding that doesn’t stop with gentle pressure

Catching an infection early keeps a small problem from becoming a bigger one and protects the cosmetic result of your surgery.

Sun protection matters even more after skin cancer

Having one skin cancer raises your risk of developing another, and the same UV exposure that threatens your healing site drives that risk. Treat this recovery period as the start of a long-term sun protection habit: daily broad-spectrum sunscreen, protective clothing, and regular skin checks with your dermatologist.

Mohs surgery aftercare in Las Vegas, Henderson, and St. George

Healing well through a desert summer takes a little extra planning, and our team is here to help you do it. To ask questions about caring for your surgical site or to schedule a skin check, contact one of our offices today.