How long it takes for a person with acute sinusitis to heal on its own is related to the specific condition and cannot be generalized. Acute sinusitis is mainly categorized into bacterial and viral, and can present symptoms such as nasal congestion, runny nose, and the resulting headache and loss of appetite, tearing eyes, etc. If the patient’s symptoms are very mild, it can be cured in 7-10 days by the body’s own immunity. If the patient’s symptoms are very mild, the patient can rely on the body’s own immunity without medication, usually 7-10 days can be self-healing. However, some patients with severe symptoms need medication under the guidance of an ENT doctor, such as antibiotics, mucus drainage agents and short-term nasal vasoconstrictors, nasal spray hormone sprays, as well as saline or seawater rinsing of the nasal cavity. If severe symptoms are not treated aggressively, they are likely to migrate to chronic sinusitis, which will eventually require surgery for treatment. Therefore, patients with acute sinusitis are advised to actively consult an ENT, eat more vegetables and fruits, take vitamin C supplements, pay attention to fatigue combinations, and avoid overexertion during the period of illness.