What does a steroid shot do for pharyngitis? Does it kill the cause?

Anti-inflammatory;no. Presumably you're referring to a corticosteroid shot rather than an anabolic steroid such as testosterone. Various forms of Prednisone (steroid) can be given as pill or shot, even as cream, all acting as anti-inflammatory to cut down on swelling. However, it doesn't "kill the cause" which is most likely due to either a virus or bacteria. If the latter, need antibiotics. If former, just time.

Related Questions

Why did a steroid shot on hip for pharyngitis leave a huge bruise and bump? Very painful. Never had a bruise like this before from a shot.

injection hematoma. It is possible a post injection hematoma. You need to see your primary care physician to check your coagulate status and platelet count. If everything is normal, just have warm pad treatment as needed. Read more...
IM injection. Hello, the injection you received probably caused a hematoma. The medication is delivered into a large muscle for a quick action within our bodies. I see you take ibuprophen, tylenol (acetaminophen) and motrin? Do you realize that ibuprophen and Motrin are the same medications? The hematoma may be due to the fact that you are taking meds that could put you at risk for bleeding. See your family doctor for both. Read more...

My exams are very near. And I got a sudden attack of severe flu, throat infection and fever at times aswell. Will a steroid shot make any difference.

Perhaps. An injection of steroids or a Medrol (methylprednisolone) dose pack may give you some symptomatic relief, but not a very good idea. First, if the infection is bacterial it may make it much worse. If viral it may delay resolution, and steroids are far from benign medications. See a doctor and let them examine and treat you accordingly. Read more...