Our expert says:
You probably tore a ligament or injured the meniscus - bind the knee with broad crepe bandage from halfway down your thigh to halfway down your calve - should not be too tight but should restrict the bending of the knee somewhat ( effect of a soft or bendable cast) You can take anti-inflammatories like Neurofen. If the knee starts swelling or throb or becomes red and warm you should rather see your doctor.
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