How long does it typically take for a first-degree burn to heal?

A first-degree burn, which affects only the outer layer of skin (the epidermis), typically heals relatively quickly. The correct timeframe for healing is generally around 3 to 6 days after the injury occurs. This is why the answer indicating a healing time of 5-6 days aligns with what is commonly observed in clinical practice.

While some sources might suggest that first-degree burns can heal in as little as 1-2 days, this is less common and may apply to very mild cases. Conversely, healing in 1-2 weeks reflects more severe damage or complications, which does not typically characterize first-degree burns. Therefore, the most accurate answer aligns with the usual duration for healing in uncomplicated first-degree burns, which is reflected in the chosen answer.