When might a clinician pause or cancel treatment due to edema or blistering?

• A. Pause, cool, reassess, and adjust settings or stop if edema or blistering indicates a burn or excessive thermal injury.
• B. Continue treatment and increase energy gradually.
• C. Pause only if pain becomes severe.
• D. Ignore blistering and proceed as planned.

Answer: (A)

When the skin shows edema or blistering during laser hair removal, it signals that the tissue has absorbed too much energy and an actual burn or excessive thermal injury may be occurring. The right move is to pause treatment, cool the area to help stop ongoing heat damage, and then reassess the skin’s response before proceeding. This may mean adjusting the laser settings for safer energy levels, pulse durations, or cooling measures, or stopping the session altogether if the injury is evident or worsening. The goal is to prevent deeper burns, scarring, or pigment changes by addressing the injury promptly rather than pushing through.

Continuing with higher energy would worsen the injury, and waiting only for severe pain isn’t reliable since some burns can be painless or only mildly uncomfortable initially. Ignoring blistering and proceeding is unsafe and increases the risk of lasting damage.