Frozen shoulder treatment

Even when experiencing pain from golf elbow or tennis elbow, I used to just endure it roughly, and after a few weeks or months, it would get better.

The problem is that it has become a habit, so they don't go to the hospital unless they are seriously ill.

However, I have been experiencing a lot of pain in my left shoulder and forearm for several months.

Similarly, I was just enduring it, thinking it would get better after hurting like this.

However, the duration of the pain is lasting longer than I expected.

It's already been a few months, and I'm starting to worry if there might be some calcification.

If possible, I want to find a place that provides good treatment, get diagnosed in one go, and receive effective treatment.

Please recommend a hospital in Incheon that specializes in treating frozen shoulder.