Colds can trigger allergic rhinitis, the following clinical analysis, colds, also known as acute rhinitis, mainly manifested as nasal mucosa congestion, edema, nasal cavity, a large number of oozing, patients can appear dizziness, headache, fever and other systemic manifestations, this period of the patient’s resistance and immunity is significantly reduced, once there is external allergens inhalation, it is very easy to induce the patient to develop allergic rhinitis. Clinically, many patients are in the cold period or the late stage of the cold, the acute attack of allergic rhinitis, clinically manifested as repeated sneezing, nasal itching, a large amount of watery nasal mucus and other discomforts. For the treatment of this disease, clinically, the main choice is to apply some nasal spray hormones, commonly used fluticasone propionate nasal spray, trimethoprim nasal spray, as well as antihistamine nasal spray nasal spray treatment, at the same time you can take antihistamines orally, commonly used drugs such as levocetirizine hydrochloride oral solution, symptomatic consolidation of therapeutic treatments, recommend that the patient drink more water, an appropriate increase in the diet of high-protein, and to avoid the allergen. Allergens.