hi and very pleased to help you The tear of the rotator cuff is the injury of one of the tendons that connect the different muscles to the head of the humerus. This lesion leads to a decentering of the shoulder, causing stiffness, pain and loss of strength. It is due to wear of the cuff often with initial trauma, variable in intensity. Physioterapy (regain any lost motion, and it will condition the other muscles of the shoulder – allowing more efficient use of the arm, giving a chance for the torn tendon to heal) is of capital importance in the treatment of this condition. A surgical treatment may be necessary. To reduce pain and inflammation you can use corticosteroid (tricort) injection into the shoulder at the medical office. Icing the shoulder 20 minutes 2 times daily will also reduce inflammation and decrease pain. Any intervention on the human body, even under the conditions of maximum competence and safety, entails a risk of complication. As with any puncture or infiltration, there is a very low risk of infection (1 in 70 000). in all cases, all necessary precautions are taken to avoid these risks. Rarely, mild undesirable effects such as a transient inflammatory reaction of the joint by reaction synovitis is possible more or less markedly. This usually returns to order within 24 or 48 hours, sometimes with icing use. More or less severe allergic reactions are possible even if they are exceptional. The general side effects of cortisone and corticosteroid treatments never occur with infiltrations because the product is injected into the joint and only into the joint and at minimal doses as compared to cortisone oral classical treatment use. There are therefore no endocrine disorders, digestive disorders, bone fragility or osteoporosis following corticosteroids infiltrations. best wishes