How many days it takes for a swollen and painful epiglottis to heal depends on the underlying disease that triggered the symptom. If the symptom is caused by a mechanical injury, it will usually heal in about a week with normal immunity of the body.
If the symptom is caused by an infectious disease, it can be completely cured in 1 to 2 weeks of treatment with the intervention of appropriate drugs, which needs to be evaluated according to the severity of the infection, the patient’s general condition, local and surgical management, and the rational use of antibiotics.