Paracetamol, known generically as chlorpheniramine maleate tablets, can be used to treat hives, but is not a first-line treatment for urticaria. Chlorpheniramine maleate tablets are first-generation antihistamines that are widely used for allergic diseases such as urticaria and allergic rhinitis, and to relieve itching and edema of the skin due to insect bites. The drug has a short half-life, and overdosage carries an increased risk of elevated intraocular pressure, urinary retention and even internal organ damage. And may cause dizziness, drowsiness, dry mouth, fatigue, and other adverse reactions. Can induce epilepsy. Currently, the first-line clinical treatment of urticaria is the second-generation antihistamines such as loratadine. Chlorpheniramine maleate tablets can be used to treat urticaria, but should be used under medical supervision. After suffering from urticaria, you need to go to the hospital to check the allergens and clarify the allergic substances, and take symptomatic medication as prescribed by the doctor after clarifying the cause of the disease.