What are the asthma symptoms caused by allergic rhinitis?

The asthma symptoms triggered by allergic rhinitis mainly include the following aspects: 1. Respiratory symptoms: Patients with allergic rhinitis often experience persistent nasal congestion, runny nose, sneezing, and nasal itching, which may be accompanied by coughing, sputum production, wheezing, and shortness of breath. The cough typically occurs mainly at night or in the early morning and may worsen after exposure to cold air or irritating odors. 2. Chest tightness and difficulty breathing: During an asthma attack, patients may feel chest tightness or a sensation of chest compression. In severe cases, difficulty breathing may occur, requiring mouth breathing or sitting upright, even in a fully seated position, to relieve symptoms. 3. Wheezing and哮鸣音 (whistling sounds): Patients may produce wheezing sounds while breathing, similar to a prolonged whistling noise. On physical examination,哮鸣音 (whistling sounds) can be heard in the lungs, particularly at the end of exhalation. 4. Seasonal occurrence: In some patients, asthma symptoms exhibit seasonal patterns—for example, higher frequency in winter and spring—which may be related to allergen exposure specific to certain seasons. 5. Symptom relief and recurrence: Symptoms of allergic rhinitis and asthma may be relieved or disappear after avoiding allergens, but they may recur upon re-exposure to the allergens.