(HealthDay News) -- If itchy skin is irritating you, figuring out what's making you scratch can help you find a solution.

The U.S. National Library of Medicine says common causes of itching include:

  • Having an allergic reaction.
  • Having dry skin, a skin rash or a skin condition such as eczema.
  • Having an insect bite or sting.
  • Being exposed to irritating chemicals.
  • Having pinworms, scabies or head lice.
  • Being pregnant.
  • Having a reaction to a medication.