Hello,
If this is only one side of the nose then I would worry about a potential foreign body or even a tumor.
When I get a case like this we talk about what our potential differential diagnosis is after an exam. We usually start with an antibiotic because an upper respiratory infection is the most common thing we see in cats. Then we talk about a different antibiotic or antiviral if the first doesn’t work. After that we start talking about either running diagnostics like an Xray, blood work, or sending our patient to an internal medicine specialist for a second opinion.
For people who are cost sensitive we try options of different medications or a nasal flush or head Xray.
Hello,
In my experience constipation on cats is always secondary to something else. Either old wounds, like a fractured pelvis, an underlying disease, or diet.
Has your cat had a thorough examination, bloodwork and X-rays? Have your tried different diets, supplements and fluid therapy.
I hope this helps.