In cases of straining, petechiae typically form on the neck, face, and chest, and they tend to be very small in size. Strep throat is a type of bacterial infection that can cause red and white ...

Clumps of petechiae on your skin look like a rash. But unlike many rashes, when you press on the spots they don't turn white. If the spots are larger and red or purple, you may have another type ...