Ключевые слова: allergy, alternative, amoeba, bacteria, brain, ceramic, chlorinated, clear, danger, death, faucet, health, hygienic, improper, infection, irrigation, liquid, medical, medicine, nasal, neti, neti pot, nose, pot, potable, risk, saline, salt, sinus, sinusitis, solution, sterile, tap, tap water, treatment, unsterile, wash, water,