Although rare, a brain-eating amoeba has been linked to using non-sterile tap water for use in nasal lavage (or Neti pot). Nasal lavage is a wonderful means of clearing allergens from your nasal passages and relieving many allergic symptoms–just be sure to use sterile water when making your saline solution or a pre-made sterile saline. Instructions should be included in your Neti pot. Click here to learn more about the risk of contamination.