Question for Humaworm

I posted this in another section but didn't get any replies.

I was wondering if it was even possible to be parasite free living with non cleansers?

I know I can "worm" and "cleanse" myself but I live with people who I'm convinced have a good amount of parasites. On and off all year, my mother has had issues with "stomach infections" and "bugs" and other silly little "diseases" that she runs to the dr for and comes home with tons of medication. The last one, they decided it was such a bad/strong strain she needed 5 different pills. There is no way in hell she would ever believe in parasites or anything like that. No way whatsoever she would be remotely interested. So having her do any sort of cleanse is not an option.

My 80 yrold grandmother also lives with us. Enough said.
My brother..brags about only having to "take a dump" once a week and loves to "fart". Eh, typical, average maleright?


I feel like I should swallow bleach every night to keep myself clean. I got a couple emails which I didn't find realistically helpful because I can't run around the house all day using sanitizers sprays, wipes and herbs to clean doorhandles and toilets or anything else they touch 24/7.