What causes dryness inside the nose?

In general, dryness inside the nose may be caused by dry air, air pollution, internal heat ("shang huo"), atrophic rhinitis, or dry rhinitis. If discomfort arises from any of these conditions, medical attention should be sought promptly to prevent worsening. Detailed explanations are as follows:

1. Dry Air: Dry air is one of the most common causes of nasal dryness. Low humidity can cause the nasal mucosa to lose moisture, leading to dryness and discomfort. Using a humidifier or placing a basin of water indoors can help increase indoor humidity and relieve nasal dryness.

2. Air Pollution: Prolonged exposure to polluted environments—such as those containing smoke, chemical fumes, or dust—can irritate the nasal mucosa, causing it to become dry and inflamed, resulting in a dry sensation inside the nose. It is advisable to avoid areas with significant air pollution.

3. Internal Heat ("Shang Huo"): In traditional Chinese medicine, "shang huo" refers to excessive internal heat, which may lead to dryness of the nasal mucosa and a dry feeling in the nose. Medications such as Niuhuang Qingfei Tablets, Longdan Xiegan Decoction, or Yinxu Weitong Granules may be used under a doctor's guidance to alleviate symptoms.

4. Atrophic Rhinitis: This condition involves severe thinning and atrophy of the nasal mucosa, impairing its normal moistening function. As a result, the inside of the nose tends to become dry and more sensitive to environmental irritants. Treatment may include medications such as Biyan Pian, Qianbai Biyan Pian, or Tongqiao Biyan Granules, as prescribed by a physician.

5. Dry Rhinitis: Dry rhinitis is a condition in which the nasal mucosa remains chronically dry. It may result from congenital factors, prolonged exposure to dry environments, prior nasal surgery, or side effects of certain medications. Treatment may involve medications such as Xiangju Capsules, Biyuan Tongqiao Granules, or Amoxicillin Capsules, as directed by a healthcare provider.

In daily life, eating more vegetables, maintaining regular bowel movements, and reducing or avoiding highly stimulating foods can help support nasal health.