Bug bites are fairly common. Some bites, such as one from a fire ant or a sting from a bee, cause immediate discomfort. Others trigger itching or go unnoticed. Bug bites or stings are seldom dangerous, but in some cases they can lead to a life-threatening allergic reaction, severe symptoms, or a serious medical condition, such as malaria or Lyme disease. Follow the links below to find WebMD's comprehensive coverage about bug bites, what they look like, how to treat them, and much more.