What types of infections are treated with cephalexin?

Cephalexin is commonly used to treat a variety of bacterial infections, including skin infections, respiratory tract infections, ear infections, and urinary tract infections. It is effective against certain strains of bacteria, particularly Gram-positive organisms such as staphylococci and streptococci. Additionally, it may be prescribed for bone infections and some dental infections. However, it is not effective against viral infections.