This worked for my family:
1) l-lysine. 500 mg twice a day (1000mg total per day)
2) 2000 micrograms iodine once a day
Take the above for three weeks beyond when you feel better. You will probably feel better in about a week plus take the above for three more weeks= four weeks total. Limit your coffee intake severely at this time.
This is the same recipe to take for anyone with a frozen shoulder that has occurred spontaneously/without injury. Based on my experience, I believe a frozen shoulder this way is caused by a virus.