The Old English word for a Crab - stems from the Germanic Saxon Kreb , However Cancer comes from the anotomical name - ' canker ' is from the Latin word for  a crab ,  later the word cancer was used to describe a  malignant tumor .  which was first described by the Greek physician Galen , ( among others ) , who noted similarity of ( karkinos ) ...
Sinus infections often follow a cold and cause pain and pressure in your head and face. Sinusitis can be either acute (sudden) or chronic (long-term). With chronic sinusitis, the infection or inflammation does not completely go away for 12 weeks or more.
How long does a typical upper respiratory infection last? Once a cat is exposed to an infectious agent, it will go through an incubation period of 2-10 days before developing symptoms. If the infection is uncomplicated, it will typically last for 7-21 days, depending on the particular disease agent with 7 to 10 days being average duration of illness. During this entire time, the cat will potentially be infectious to other cats.