It can be sue to the nerve compression in the neck region because of which the pain travels down the shoulder and back and the treatment is Physiotherapy . In case of scoliosis, diagnosis is must and can be dine with an x-ray of spine.
Next Steps
Go to a physiotherapist.. A proper examination, diagnosis and treatment is required... Ultrasonic therapy +IFT +Heating therapy +some strengthening as well as stretching exercises will be helpful for sure.
Health Tips
At home.. Rest +hot water fomentation +pain killer gel +no long sitting /travelling /driving /forward neck bending+no weight lifting +avoid cold exposure +no manual exertions +sit tall.