Shoulder injuries are miserable. It might take another 4 weeks. If it is hurt so bad you can't lift it after 3 days you should see a doctor. When you return to lifting experiment with light weight to find exercises that don't seem to aggravate your shoulder.
For example: Barbell presses kill my shoulder, but dumbbell chest presses do not.
Behind the neck shoulder presses hurt, in front does not.
(Typically anything behind the neck puts more stress on the rotator cuff)
Dips hurt, bench dips do not.
If you have shoulder pain now then it will probably always be an issue. If you keep aggravating it you will end up needing surgery. (Both of my brother in-laws have had surgery)
Good luck in your rehab,
Rebecca D