If the children’s snotty nose does not get better even after a month, it is mostly due to the symptoms caused by rhinitis, and the following measures need to be adopted for treatment. First of all, you can apply antihistamines to deal with, antihistamines can choose the first generation of antihistamines, you can also choose the second generation of antihistamines. First-generation antihistamines include chlorpheniramine maleate, paracetamol, etc. These drugs will not only improve the symptoms of nasal congestion and runny nose, but also cause drowsiness, which is less used at present. The second class of antihistamines include loratadine, cetirizine, etc. Especially the second generation of antihistamines, which will not cause drowsiness and are more widely used. Secondly, topical nasal sprays can be applied, such as physiologic sea saline to clean the nasal cavity.