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Signs of infection in a burn — what to look for?

April 5, 2026

Quick Answer

Signs of infection in a burn include increased redness, swelling, increased pain, and pus or discharge. The burn may also develop a foul odor. In severe cases, the skin may turn black or die.

Identifying Signs of Infection

When treating a burn, it’s essential to recognize the early signs of infection to prevent further complications. Increased redness and swelling in the affected area can be a sign of infection. Monitor the burn for any changes in the surrounding skin, such as redness that spreads beyond the original burn site or increased swelling that’s not caused by fluid accumulation.

Treatment and Monitoring

If you notice any signs of infection, it’s crucial to seek medical attention immediately. In the meantime, keep the burn clean and dry by applying a topical antibiotic ointment and covering it with a non-stick dressing. Monitor the burn’s temperature by feeling the affected area with the back of your hand; if it feels like it’s warm or hot to the touch, it may be a sign of infection. Check for any signs of pus or discharge, and if you notice a foul odor, seek medical attention.

When to Seek Medical Attention

If you experience any of the following, seek medical attention immediately: increased pain, swelling, or redness, pus or discharge, a foul odor, or difficulty moving the affected area. If the burn is large, deep, or on the face, hands, or feet, seek medical attention even if you don’t see any signs of infection. In severe cases, the burn may require surgical debridement or grafting to promote healing.

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