In general, no. There may be some mild aching or a slightly "bruised" feeling after treatment. Many patients feel freer and more comfortable almost immediately. If you feel worried or concerned about the body’s reaction to your treatment then you should call the practice and ask to speak to one of the osteopaths on duty for advice and reassurance. On the rare occasion that an adverse reaction does occur you will be offered an emergency appointment if the osteopath thinks it is appropriate. If an osteopath is not immediately available then either leave a message on the answerphone or with the receptionist and someone will call you back as soon as possible.