[quote=@ViolentViolet]
[@Rae Zer]
What about people like me with never ever take anything artificially created when they get sick and let my body handle it with the help of rest and soup and tea? I mean, I get better in maybe a week when I get the flu, while still going to school and everything I need to be doing on the days that I'm not vomiting. 
[/quote]

Letting your body handle it is great. Your body increases its resistance to certain strains of disease by handling them by themselves. But, if it is influenza you'd have to be careful especially during winter seasons. The cold of winter can make the flu worse and while your body may grow to be immune to one strain, another strain'll come along which your body doesn't have immunity to. Thus, you'd have to go through the process nearly every year. In an apocalypse like we have in this roleplay, vomiting can be a very bad thing even if it doesn't seem as such. Vomiting forces up a mixture of bile and whatever has recently gone in you out of your body. The bile is not fun to deal with and you don't want to lose a limited amount of supplies even if it is only over a week. Even the most minor of viruses and bacteria can cause serious trouble without modern amenities.