"Physiotherapy for Long Term Health Conditions"

I have a long term rheumatic health condition.  I self manage this within the best of my ability and therefore only contact services when required.  

I was recently involved in a car accident which has caused a flare up of my pain - mainly nerve pain.  I have seen A and E and GP and both have recommended physiotherapy.  Unfortunately, there does not seem to be a drop-in/drop-out service available for those of us with long term health conditions and we appear to have to go back onto a waiting list - by which time the flare up will either have painfully passed, or the pain will have become such that I am required to take more medication than I want to and possibly time off of work due to the nature of my job.  

Surely it would make sense resource wise, financially and most importantly for person centred care at the right time when needed most - that there was a specific service for those living with long term health conditions with chronic pain?