What causes persistent nasal itching?

Under normal circumstances, persistent nasal itching may be caused by environmental irritation, nasal foreign body, allergic rhinitis, atrophic rhinitis, or vestibulitis. Patients should promptly visit a正规 hospital to determine the underlying cause and receive appropriate treatment. Specific causes are analyzed as follows:

1. Environmental Irritation

Exposure to environments containing irritant chemicals—such as smoke, pollution, strong fragrances—or dusty conditions can irritate the nasal mucosa and lead to itching. In such cases, rinsing the nasal cavity with warm water may help alleviate discomfort.

2. Nasal Foreign Body

A foreign object in the nasal cavity—such as small items accidentally inserted into the nostril by children or inhalation of tiny particles during work—can cause localized irritation and itching of the nasal mucosa. Maintaining good nasal hygiene is important; saline solution rinses can help relieve symptoms.

3. Allergic Rhinitis

When the body is exposed to allergens such as pollen, pet dander, or dust mites, an inflammatory response in the nasal mucosa may occur, leading to symptoms including sneezing, nasal congestion, runny nose, and nasal itching. Under medical guidance, patients may use medications such as loratadine tablets, cetirizine hydrochloride tablets, or ebastine tablets for treatment.

4. Atrophic Rhinitis

Excessive dryness of the nasal mucosa—common during dry seasons or after prolonged exposure to air-conditioned environments—can deprive the mucosa of necessary moisture, resulting in dryness and itching. As directed by a physician, patients may use medications such as Biyan Kang tablets, Xiangju capsules, or Qianbai rhinitis tablets to improve symptoms.

5. Nasal Vestibulitis

If nasal secretions increase and are not properly cleaned, they can irritate the skin of the nasal vestibule, leading to vestibulitis. Symptoms may include dryness, itching, and a burning sensation in the nose. Under medical supervision, topical treatments such as metronidazole gel, clindamycin ointment, or Mupirocin (Bactroban) ointment may be used.

In daily life, it is recommended to maintain a positive mindset, avoid spicy, irritating, and greasy foods, get adequate rest, and develop healthy lifestyle habits.