If it's a first time dislocation then usually full recovery takes between one and 2 1/2 months. Most (about 90%+) dislocations are "anterior" and I'm assuming yours is this type. (The shoulder is the most easily dislocated joint by reason of its form and function). Principal rehabilitation is in regaining full mobility of the rotator cuff muscle and rest for any tendons or ligaments that may have been damaged. The hospital (sounds like UK!) should have given you advice on recovery rest/exercises. Other than that, reduction of local pain and inflammation may be helpful and your doctor or pharmacist can help you with that (several herbal remedies are effective for this also).