Strep throat can cause bright-red, swollen tonsils, white patches or streaks, and tiny red spots on the roof of the mouth. It can also cause a sudden sore throat, fever, and swollen glands in the neck. Not everyone will have the same symptoms, though, and you can't confirm strep just by looking at your throat. If you're in Centennial, Greenwood Village, Littleton, Englewood, or a nearby South Denver community, AFC Urgent Care Centennial ...