It's not just a question about the magnitude of the possible upside or downside though, it's also about how likely they are to occur. If you offer me the opportunity to almost certainly make every day slightly better with the risk of killing me at a rate of once in the current age of the universe I'm going to take it. It's a tiny upside with a massive downside, but it would be irrational not to take it given the chances involved.

Medications absolutely are controlled. That doesn't mean they don't have issues, but are you willing to suggest medications are less controlled than food? I don't need to hope I've washed my medications well enough, nor do I need to ensure I've heated them to at least a certain temperature for a length of time, nor do I need to worry about cross contamination or any such thing. This isn't to say medications are without risk, but compared to produce, meat, or eggs I have a much better idea about what exactly is entering my body when I consume it.

>All I'm saying is that going to the doctor has risks that need to be considered.

I doubt that very much. Are the risks significantly greater than the risk you likely took getting to the doctor in the first place? I'd be shocked.