The specific number of days to take Loratadine is mainly based on the patient’s condition. For example, if the patient is suffering from allergic rhinitis, there will be nasal congestion, runny nose, continuous sneezing, until the patient’s symptoms have significantly improved and then consolidate the drug for three days, but generally about half a month of medication recommended that patients stop taking the drug for two days to avoid the formation of drug dependence. In case of urticaria or allergic dermatitis, it is also recommended to consolidate the treatment for three days after the rash on the patient’s body has subsided, so that the drug can effectively play its role. Loratadine is widely used in clinical practice for allergic rhinitis and pruritic skin diseases, and has very good effects in clinical practice. If the patient is allergic, he must exercise more to enhance his resistance. He can also consider testing allergens to determine what he is allergic to, and if the symptoms of allergy are particularly severe, he can consider desensitization if necessary.