It can be very difficult to get a doctor's appointment, find time when they are available, and get work to let you have time off. At some places it can feel like the doctor is trying to get out of the room with you as fast as possible, so if you forget to ask something you're out of luck. That doesn't even get into the anxiety around how much a doctor's visit will cost. On top of all that, sometimes it doesn't feel like the doctor is trying to work with you to solve a problem, but rather just feeds you a line that they've been told to say.
There are complex reasons for this. For example, maybe that youtube video on clearing your sinuses could result in a worse infection. The doctor will tell you not to do that, and to get sleep and drink water. But the advice to get sleep and drink water feels almost patronizing with how difficult it is to get the appointment.
Well, that's kind of their point.