Symptoms of rhinobronchiolitis in cats at home include frequent sneezing, increased eye secretions, watery eyes, red conjunctiva, possible increased fluid in the nasal cavity, loss of appetite, elevated body temperature, and slight decrease in appetite and spirit. Feline rhinotracheitis is an acute infectious disease that causes a very strong upper respiratory tract infection in cats, also known as infectious rhinotracheitis.

Feline nasal congestion is caused by feline herpes virus infection. Generally speaking, it is more likely to occur in households with many cats and is contagious. Under natural conditions, it is generally transmitted through the respiratory tract and digestive tract. For mild cat nasal congestion, cats can eat lysine type A to inhibit the virus. Lysine contains high-purity L-lysine, which can effectively inhibit virus synthesis.