I brushed my teeth and gargled today accidently with water that is drawn from underground (boring) that we draw using motor pump and store in overhead tank. Some water drops splashed in my nose too. Can the water in my nostrils travel far up the nose and to the brain to cause infection when I breathed in while wiping my face with towel? Since we don't have a municipal connection like in Delhi, I get very anxious. I don't want to die like this that's why I fear so much. I will start using chlorine tablets once I get them delivered from Amazon.