At first, you need to do is decide about what you would like to get rid of from Shiatsu massage therapy. For example, if you are suffering with migraines then try to find a practitioner who is a specialist in using Shiatsu for migraines.
You can also take help from your friends or family members who have been through Shiatsu massage therapy before. They might tell you about an experienced Shiatsu practitioner.
Consult the telephone directory to find out contact numbers or addresses of Shiatsu massage practitioners and try to contact those you think are more experienced ones.
You next step should be to ask them about their qualifications and also in which area they are specialised and consult with those ones who deal with migraines.
You should discuss your problem with two or three Shiatsu practitioners and try to choose the best one for you who meets your needs and who you think is most experienced one.
Make sure you do not get irritated with touch as Shiatsu massage therapy requires a lot of touching. Make yourself comfortable with the Shiatsu massage as it is the most important aspect to get desired results.