you have started to work earlier.so you have that problem.
Here are some general treatment measures which you can follow:
1) Provide complete rest and avoid overhead & over heat & light activities.
2) Apply cold
compresses and take some homeopathic
medicine Symphytum 30 BD,Arnica 30 HS
3) if pain is increasing than you r consulting your doctor.
I hope this answers your query.
In case you have additional questions or doubts, you can forward them to me, and I shall be glad to help you out.
Please accept my answer in case you do not have further queries.
Wishing you good health.
dr neeraj gupta