Batman, it is dangerous to give advice as you did, especially regarding an injury like djeasy incurred. Firstly, I don't know what medical practice you attend, but no doctor in his right mind will prescibe and administer what you advised. Not even me - and I know my stuff..
Deca has never been developed for "lubricating" joints. It is just an "anecdotal" side effect, basically because of estrogen/progesterone receptor stimulation in the joint tissue, especially in tendons - and this deca does wonderfully, as it is a strong progestogenic agent.
Djeasy, it all depends on what you have injured. If you have just strained a rotator cuff muscle, good period of rest and short course of anti-inflammatories should do. If it doesn't clear up, go see your GP and have 1-2ml of Celestone Soluspan(cortisone) inected into the shoulder joint with atleast 2-3 weeks of rest. A couple of simple principles will also assist in the recovery process. Use the acronym PRICE. P stands for physiotherapy and pain relief, R stands for REST(the most important letter in the acronym), I stands for ice(we'll get to that shortly), C stands for compression(which is a bit difficult for a shoulder, but good for knees, wrist, elbow and ankles - meaning elasto-crepe bandage) and lastly E stands for elevation( lift the injured joint, especially when you rest or sleep). Now the ICE. First do warm compression to the joint, either warm water bag or nice hot shower. Never longer than 5 minutes. Immediately replace the heat with a plastic bag full of ice blocks, covered with a wet cloth of some kind. This stays on for 25 minutes. Repeat the procedure 2-3 times per day while you are RESTING(and not training!) the joint.
Keep on a high prot diet, esp high in amino acids and supplement extra glutamine - don't be shy with the latter. Use NOXplode - it will vasodilate the feeding arterioles in the tendon sheath and "push" in the good supplements.
One of the newer and excellent anti-inflammotories that works well for pain and inflammation, is Arcoxia 120mg. I prescribe this a lot to my patients with any sports injuries. You will need a script for this.
If you do all the above and there is still no improvement, you will need an orthopaedic consult, preferably one that specializes in the shoulder joint.
Growth Hormone will assist greatly, but you also need to train to optimize its effects - that leaves you a bit in a catch 22 position. If it were me, I would use it in anyway.
I had a supra -spinatus repair done of my shoulder 3 months ago(19'th October). The calcification was removed, as well as part of the acromion-clavicular joint. I did a very intense, to-the-book rehab for the shoulder. I did all the things above. I've been back into full training the last 4 weeks and am pushing heavier weights the last week than before my last competition. I was on AAS then, but not know. So, correct rehab is of utmost importance. Four weeks after my op, I was weighing 114kgs, did my full PCT and pushed the above mentioned supplements. I'm now clocking the scale at 123kgs, my shoulder has minimal pain and stronger than in the last 10 years.
Shoulder injuries, if not treated correctly, ALWAYS become chronic problems. Never mess around with shoulder injuries - all your upper body workouts will suffer!
Good luck!
Knowledge is power!