Allergic rhinitis nasal congestion is serious should be timely consultation, under the guidance of the doctor to use drugs to relieve nasal congestion and anti-allergy drugs, etc., while avoiding contact with allergens. First of all, you should standardize the use of nasal sprays, including hormones, antihistamines, anticholinergic drugs, if the nasal congestion is very serious, you can use drugs to relieve the symptoms of nasal congestion, such as furosemide nasal drops, hydroxymethazoline hydrochloride nasal drops, etc., this kind of drugs have a quick effect, and the symptoms improve significantly. But these two drugs can not be used continuously for more than 7 days, long-term use will lead to drug rhinitis. Allergic rhinitis can also be treated with oral anti-allergy drugs, such as montelukast sodium tablets, levocetirizine oral solution, etc., which can improve the nasal congestion symptoms of rhinitis patients to a certain extent. For allergic rhinitis patients, it is important to avoid contact with allergens in daily life, so as not to cause rhinitis recurrence or aggravation of symptoms. The use of the above drugs should follow the doctor’s instructions, not self-medication.