What do Vegans do if they have head lice or worms?!
Answers: Just curious really.
Destroy them.
Doing all you can and the best you can to minimise your contribution to the suffering and exploitation of animals doesn't include allowing them to attack you and harm you.
Whether it's a head louse or a lion that's threatening you, you put your own health and safety and that of your family first.
I'd rid myself of them. I still put my own well being and survival first but I do all I can do minimize animal exploitation and not contribute my money to the meat industry (which wrecks the environment and swallows up 80% of all plants that are grown on this planet, not to mention uses up and wastes more water than any other industry). I doubt I'll ever get either though, not unless my little girl brings them home from public school.
Thats their personal hygiene and health, they would have to destroy them to protect themselves.
None of the vegans I know wouldn't hesitste to kill such parasites. If the person was a follower of Jainism, where all life is sacred (they brush the path in front of then so they don't step on insects etc) then that would be another matter.
Good questioa
Lose friends.
They get rid of them by applying neem oil
Kill them like any other sane person.