You don’t need to, in the majority of cases these injuries are self limiting and will remedy in a week or two.
What can I do?
Keep active and don’t load the area for a few days to lower the inflammation. Once the area stops hurting you can load it again.
What happens if it still hurts after a week or 2?
Again the reason is probably that you keep loading the area and it is not having the chance to get out of its inflammatory stage. Reduce the load or adapt adapt any behaviours to stop irritating the area.
It’s still hurting and it’s been over 3 months now?
Well we are now in the chronic definition of an injury/pathology. This means that there may very well be sensitisation of the area and all interventions are going to be less effective. It may be worth going to see your doctor who can refer you to a specialist.