Yes, sometimes we are too stubborn to visit the doctor when we need it, but since we usually recover on our own, we don't go, as you say, you can have something worse and not know it and believe that you will get better on your own and the worst can happen, I am very sorry for the death of your family member, it is something that definitely makes you think.
Thanks mate. I think it all boils down to how strong someone's immune system is because that's what makes it possible for you to recover from an illness most of the time without having to go to the hospital. With just few pills you have, everything will be back to normal. There are some who doesn't even take any pills at all and they will be good to go in just few days.