The practioner I saw charged around £30 for an hour's reiki and then a good twenty minute chat afterwards. She came recommended by a friend and I would think thats a better way to go -- ask around (maybe even on this site) to see if there is someone local who is recommended to you. She picked up fairly quickly on a lot of the stuff that was bothering me and told me to drink lots of water afterwards for 48 hours. She also said that I might feel worse before I feel better. There are a few 'alternative therapies' that I don't really buy into to (but if it works for someone, it works) but I know a few people who practise reiki and they are sane, sorted people, so that propelled me into trying it (I'll try anything within reason!)