Not sure if there is another use or another type of interferon. From what I know, interferons are proteins in our immune systems that often respond to immune challenges such as cancers and viruses.
Medically, they are given with the belief that they will strengthen your immune response, but in that case you are taking a synthetically made imitation, which personally I would avoid and try other options.
Exactly! Now, they also have a drug edition and that's 100% POISON!