I have a knee that for no particular reason can suddenly cause amazing pain after walking for just a short distant. The 18 surgical procedures over the years may be partly to blame! LOL It doesn't happen a lot but when it does happen it's quite unpleasant. When I'm home it's easy to just sit around and do nothing for a day or two until the pain passes...but I don't want to be wasting time in Bali sitting around waiting for knee pain to subside. Can anybody tell me/recommend the most powerful pain killers that can be bought over the counter in Bali pharmacies? Cheers keviin