Dr. Abdulaziz AlRashed — Consultant Dermatologist, Cosmetic & Laser

Wound Care After Cryotherapy, Cautery or Biopsy

Last reviewed 1 July 2026 — Dr. Abdulaziz AlRashed

A patient advice sheet — 8 practical points. Reviewed and updated by Dr. Abdulaziz AlRashed, July 2026.

Last reviewed: July 2026

The advice

After cryotherapy: redness, swelling then a blister (sometimes blood-filled) within a day — this is normal and expected; do not pop it, and if it is large and painful the doctor can drain it sterilely.
Wash the area gently every day with water and mild soap; do NOT use alcohol, hydrogen peroxide or iodine on it — they delay healing.
Apply a layer of Vaseline and cover with a plaster until healed: a moist covered wound heals faster and scars better than one left "to dry out".
Change the plaster daily and after getting wet; normal showers are fine, but no soaking in tubs or pools until healed.
A crust or darkening of the treated surface is normal and falls off within 1–3 weeks (longer on the legs) — do not pick it.
For biopsy stitches: keep your stitch-removal date (face about 5–7 days, body 10–14 days), and avoid stretching the area and hard exercise until removal.
Mild pain needs only paracetamol; contact us for spreading redness, pus, throbbing pain, or fever.
A new scar stays pink for months: apply sunscreen on it to reduce permanent darkening.

My private clinic at Kuwait Hospital (Sabah Al-Salem) — direct assessment and a treatment plan built around your case.