There's really no cure for an upper respiratory infection and in most cases the upper respiratory infection clears up and goes away even on it's own within 2 to 3 weeks.
But you can help ease the symptoms of the upper respiratory infection by getting plenty of rest, using a humidifier, taking a steamy hot shower or sitting in the bathroom with the shower steaming.
Also eat some chicken noodle soup, take over the counter cold and flu medicine and eat some oranges or drink some orange juice.
Drink plenty of water to stay hydrated as well.
Your doctor can also prescribe you some antibiotics to clear up the upper respiratory infection and make the symptoms better.
For most cases of upper respiratory infections the upper respiratory infection clears up and goes away within 2 weeks.
The upper respiratory infection should clear up and you should feel better after a few weeks but sometimes it may take 3 to 4 weeks for some people.
If the upper respiratory infection lasts longer than a couple weeks though or the symptoms seem to get worse then you should see a doctor or go to the emergency room just to be safe.
The doctor may be able to prescribe you some medicine such as antibiotics and be sure to stay hydrated, use a humidifier and get plenty of rest and Vitamin C.
Stay home from work or school if you have an upper respiratory infection until it clears up.