If it’s to draw blood and measure SUA to establish how much gout medication you need – no
If it’s to draw synovial fluid for a definitive diagnosis of gout – only necessary if there is any doubt whether you have gout
If he means a steroid (prednisolone) because you are in unbearably ‘exquisite’ pain – maybe, but perhaps unavoidable
If he doesn’t really know his ass from his elbow and can’t think of anything else to say – definitely yes