Insect bites are a common complaint of patients during the summer months, when more time is spent enjoying the warm weather. While most reactions to insect bites are mild, in rare cases, a severe allergic reaction may occur. In addition, certain insects may transmit potentially serious diseases. Counseling patients on the proper use of insect repellants and good first aid techniques can significantly reduce the risks posed by the presence of summertime pests. This article focuses on mosquitoes, the diseases they spread, and suggested treatments.