"Here, take this, might work. What do you mean you're now blind and the pain in your leg hasn't gone away? Ok, try this, if your left arm falls off the dosage is too high. Oh, your arm fell off. You mean I didn't tell you to stop when your ears went numb? My bad. You can see again though, right? Good. Try this, it won't help your arm, but you'll get feeling back in your ears. It will cause leg cramp though. What? This is the stuff I gave you for the headaches you first came to see me about before the leg pain started? Well that makes a whole loada sense..."
Context is having no luck getting a diagnosis on the NHS. (QWP)