Most simple friction blisters last a few days to about two weeks, and deeper or infected ones can take several weeks to fully settle.

Typical healing timeline

  • Many small friction blisters start feeling better and draining or flattening within 2–5 days.
  • A lot of everyday blisters (feet, hands, mild burns or rubbing) heal on their own in about 7–14 days.
  • The skin underneath keeps remodeling for longer; some sources note that the area can keep “looking different” for several weeks even though it no longer hurts.

What affects how long blisters last?

  • Cause: Simple friction blisters usually resolve faster than blisters from infections, burns, or medical conditions, which can last weeks and may need treatment.
  • Location: Blisters on weight‑bearing or high‑friction spots (heels, toes) can last longer because they keep getting rubbed.
  • Depth and size: Larger, deeper, or blood‑filled blisters take longer and may leave visible changes in the skin for up to several weeks.
  • Care: Protecting the blister, avoiding popping, keeping it clean and covered, and reducing friction all help it heal closer to the “few days to two weeks” end of the range.

When to see a doctor

  • You notice redness spreading, warmth, pus, bad smell, or increasing pain (possible infection).
  • The blister is from a serious burn, frostbite, or you have many unexplained blisters.
  • You have diabetes, poor circulation, or immune problems and get foot blisters, even if they seem minor.

Simple answer: if a normal blister is still painful, very swollen, or not clearly improving after about two weeks, or it looks infected at any point, it’s worth getting it checked.

Information gathered from public forums or data available on the internet and portrayed here.