I'm going into hospital for open surgery to remove a Cancer in my kidney. I'm worried about having to rely on being given my pain relief whilst in hospital. I suffer from poly fibro and AS. I also have asthma and pernicious Anemea which is exacerbated by my pain. I'm just worried that by having my meds via ward round I'm going to be in agony . Whenever I have surgery my pain, not just from the wound, gets unbearable. Has anyone got any ideas as to how Ican manage the pain? I'm going to be in hospital for a week to ten days.