Allergic rhinitis is the irritation and swelling of the mucous membrane in the nose which is usually characterized by itchy, watery eyes, sneezing and other similar symptoms. It is often worse at certain times of the year.

https://myhealthetic.com/2019/12/14/allergic-rhinitis/

Symptoms include
Itchy throat, itchy ears, itchy eyes, watery nose, watery eyes, constant sneezing and sometimes there could be mild headache.
Treatment
Antihistamines (Loratidine), Ginger, staying hydrated, hot tea),

Prevention
Identify the cause of the allergic reaction example: dust, chicken or bird feathers,pollen, mold and try to avoid them.

Allergic rhinitis is not a disease or a sickness, therefore it is not life threatening

https://myhealthetic.com/2019/12/14/allergic-rhinitis/

Loraditine