Yes!! You can buy hydrocodone online for treatment of cancer pain. It is basically used for the treatment of chronic pain during surgery or cancer pain. It is the treatment of moderate to moderately severe pain. It is a highly addictive drug which is used as a pain relief. If you want to buy it online then click here or go through the given order link. Take prescription from the particular doctor for this medication otherwise as it is a highly addictive drug it may cause harmful effects.