Most people feel relaxed and/or refreshed after a massage. Occasionally, some people experience post massage soreness the day after their massage. this is nothing to worry about. Most people feel a great reduction of their original muscle tightness and/or pain after the delated soreness resolves itself.
There are several theories, none of them yet have universal support, about the exact physiological cause of this "delayed onset muscle soreness", referred to as DOMS. More research must be conducted before the exact mechanisms can be determined.
What is most commonly believed in relation to massage is that this soreness is a sign that the tight muscles were stretched and realigned, adhesions and scar tissue were broken apart so new tissue could form and lay down correctly, or even simply that deep pressure was applied to an injured muscle to release spasming tissue.
The above procedures all help your muscles to relax and heal. This delayed onset muscle soreness is not unlike what a person experiences after intense exercise.
An old theory suggest that excess lactic acid in the muscle is the cause of this soreness. However, studies conducted by exercise physiologist, Dr. George A. Brooks, had concluded “lactic acid does not cause muscle soreness, fatigue or the “burn” of intense exercise.” Nor does it cause post massage soreness. While excess lactic acid is typically present in sore muscles, it is not the cause of the soreness itself.
Any time muscle tenderness occurs, place one cup Epsom salts along with one-half cup Baking Soda in hot bath water. You can also add a few drops of your favorite essential oil as well. Soak for 20 minutes and follow with a cool shower.
This soak/bath is contraindicated for anyone with cardiovascular/heart problems, or any other conditions that might respond negatively to forms of heat therapy.
Relax and Enjoy!