If the rhinitis gets worse after the vaccination, first of all, a nasal saline rinse can be performed, and if there is no significant relief, it is necessary to combine it with antihistamine medication. Some people may be allergic to the components of the vaccine, especially those with underlying rhinitis. In this case, nasal saline rinsing can be performed first to relieve the tension of the nasal mucosa, thus reducing the symptoms of rhinitis and clearing nasal secretions. However, if the symptoms are still not obvious after rinsing, then you need to consult a doctor in time, under the guidance of the doctor to use antihistamines, such as loratadine. It can target the relief of rhinitis symptoms, reduce discomfort and improve general condition. However, since the use of drugs after vaccination may affect the effectiveness of the vaccine, they need to be used under the guidance of a doctor, and should not be used on their own.