thumb repair.....now pain around radial styloid process.radial collateral...

so ive got a patient at the minute....came in for rehab of thumb, but is now presenting with pain around styloid process, palmar radiocarpal, radial collateral ligaments, and up arm. patient is describing pain as 'nettle stingings' and is tender to touch. treatment was going well with mobilities at first...but now this pain has started n its baffled me, any ideas?

hi friends
first and foremost thing i would like to know the reason for thumb repair,what sort of repair,any associated trauma.
the pain can be sclerotomic
if the pain extends up the arm then neural involvement should be suspected.how is upper limb tension test-median nerve bias?

What was the original trauma? Could be a small fracture? perhaps an avulsion injury. Have they had any investigations?