The foremost thing is to learn to relax. Relaxation now a days has to be practiced. Relaxation activates the core. Loosen up your shoulders, your tummy. Breath out-tummy in-breath in-tummy out. This has to be done intermittently throughout the day.
Rest is physiotherapy. If you're not satisfied with the current physio, consult another. A sense of connection is needed for healing to occur.
Next Steps
Relaxation. Physiotherapy consultation.
Health Tips
Avoid standing for long. Avoid footwear with heels.