My guess is that if you simply tell your occupational health team that you're experiencing chronic rhinitis, they'll just point out that you're already on the waiting list for a consultation.
However if you adopt the approach of stressing that the condition is really getting you down, leading to you feeling evermore depressed, they might feel forced to get things moving in the interests of your mental health.
So, as I see it, this could be a time to 'really lay it on thick', in the hope of seeing some action!