The term "frozen shoulder" is used for pain in the shoulder on trying to elevate the hand.  It is painful, even impossible, to raise the hand higher than the head.  substantial pain in the shoulder.

The shoulder joint has a capsule that includes the ligament by which the shoulder bones are attached to one another. The actual causes of frozen shoulder are unknown.  It occurs mostly for people between the ages of 40 and 60, and 70 percent of cases occurred in female patients. It should be stressed that this condition is not connected to calcium deposits or the common rotator cuff injuries.

This condition occurs only in the shoulder, and it has three phases:

The first phase is  "freezing".  The stiffness and pain usually intensifies over time. Quite often, it has some connection to minor injuries or some stressful situations. As the pain progresses over time, a person voluntarily decreases the amount of motions in the shoulder and very often finds it hard to find a comfortable sleeping position.

The following phase is called the frozen phase.  Daily functions are severely limited and quite often, the arm of the frozen shoulder gets places behind the back or perhaps tucked in the shirt.Pain causes a lack of movement which in turn produces involuntary stiffness when entering the second phase of the condition.

Thawing, as a third phase is reflected in a gradual return of motion and functionality of the shoulder.

Herbs that may be able to help this condition are:

anti-inflammatories:

Turmeric
Bromelain is a fresh pineapple enzyme and is also very good as an anti-inflammatory solution. It is also used for alleviating pain and stiffness, especially after surgeries.
Ginger also has great anti-inflammatory properties as it mixes well with other herbal remedies and stimulates circulation.

Willow bark and skullcap are also of great help when it comes to relieving the pain.