Ключевые слова: 1, adult, anesthetic, background, body, cold, contagious, elderly, fever, flu, health, human, ill, illness, irritation, isolated, lifestyle, male, man, mature, medicine, mouth, one, oral, pain, painkiller, pensioner, people, person, relief, senior, sick, single, sore, spray, sprayer, spraying, symptom, throat, unwell, using, virus,