A decent chiro
Heat and ice, alternated
You’ll get lots of different advice on whether you need a physio / chiro / osteo, but it will all be based on personal experiences- so if one doesn’t work, try another, or try another from the same discipline. Physio was no good at all for mine because I needed the manipulation to relieve the pressure, then the Pilates built strength to keep it stable. Others find physio effective. I would strongly suggest you DO NOT start trying any specific exercises that other sufferers recommend until you have been assessed. The wrong exercise for your specific situation can make things go very wrong, very quickly!