Can damaged throat mucosa heal on its own?
In general, minor damage to the throat mucosa without persistent irritation can heal on its own. However, if the injury is more severe or accompanied by underlying conditions, spontaneous recovery is unlikely. If in doubt, it's advisable to consult a doctor promptly. Detailed analysis is as follows:

If the mucosal injury is superficial and caused by transient irritation—such as mild burns, brief dryness, or slight inflammation—and there is no ongoing irritation afterward, the body’s natural repair mechanisms can gradually restore the mucosa. Healing typically occurs within a few days to a week. A mild sensation of a foreign body may be present during this time but will progressively diminish.
If the mucosal damage is deeper—such as from extensive abrasions, repeated inflammatory stimulation, or underlying conditions like reflux esophagitis—the mucosa's self-repair capacity becomes insufficient. In such cases, healing does not occur easily on its own, and complications such as infection or ulceration may develop, potentially worsening the injury. Medical treatment or targeted interventions are required to control the underlying cause and promote mucosal recovery.
It is important in daily life to avoid spicy or excessively hot foods to reduce throat irritation, drink plenty of warm water to maintain mucosal moisture, and seek medical attention promptly if pain worsens after the injury, swallowing difficulties arise, or symptoms persist beyond two weeks, to prevent disease progression.