Home Treatment for Feline Rhinotracheitis (Cat Flu)

1 Overview

If a healthy cat suddenly gets cat flu, it may come from another sick cat. Cats can’t synthesize lysine; they have much arginine, and the herpesvirus replicates via arginine, so they’re easily infected. But the main cause is a break in the cat’s own resistance.

I. Impact on different cats

Newborn kittens get maternal antibodies from milk; if not nursed, antibodies last 1–2 months—very dangerous, easily infected; cat flu is one killer. Adults have some resistance; when immunity drops, the virus strikes. Luckily adults’ resistance fights back, so the cure rate is higher.

II. Symptoms

Early: runny nose, sneezing, frequent eye discharge; some diarrhea, mouth odor. Mild cases keep normal appetite—hard to notice. Later: pus-like mucus, tearing, cloudy eyes, conjunctivitis or ulcers, continued sneezing and cough, reduced appetite, low spirits.

III. Treatment plan

General steps: antiviral, antibiotic, eye/nose discharge treatment, rehydration, strength support. Antiviral stops herpes spread; antibiotic prevents secondary infection; eye/nose treatment prevents worsening; rehydration and strength because appetite drops during antiviral. We recommend a combination: an antiviral tablet, an eye-drop solution, an immune-support supplement, an antibiotic, and oral rehydration salts. Late-stage cases need a vet.

IV. Treatment duration

Depends on the drug; mild cases: care-focused, from diet and mood. Severe: antiviral first, add antibiotic for pus; recover in about a week. Cat flu can relapse; well-cared kittens rarely relapse.

Tip: keep the cat warm during treatment—the virus replicates at low temperature, so low-body-temperature cats are at high risk.