Hi bale07,
You are now in healing and repair stage so be patient and wait until your pain is subside. Gentle stretch is very important to reserve muscle flexibility. Begin with the muscle in shortened position then contract it isometrically, without changing in range of motion then relax then elongate it a short distance and so on within limits of pain. Also strengthening is very important because you need to preserve your muscle power but also beyond pain limits. Hydrotherapy is a good choice for you. Listen to your physiotherapist and don't rush into returning to competition.
I wish you good luck!