I have a ligament injury in my LEFT KNEE... PLZ HELP ME?

i've been resting for six weeks... then i played a little soccer match and no pains BUt then after that i had a some pain N i put some ice on it... i've been told to apply "wintogeno" and take "Homeopathic Remedies ARNICA MONTANA and RHUS TOX in 30X or 200X potency"... PLZ PLZ PLZ tell me how to make this better within a weak... there's a soccer tournament which would start within a month... i'm desprite... plz help