The definition of 'toxin' is '...
A poisonous substance, especially one produced by a living organism. Toxins can be products or byproducts of ordinary metabolism, such as lactic acid, and they must be broken down or excreted before building up to dangerous levels.' www.dictionary.com
When toxins build up in the body some of the results can be: impaired liver and kidney function, skin breakouts, headaches, dehydration, tiredness, aches and pains, lowered immune response. Toxins in the body can be caused by pollution, smoking, alcohol, junk foods, stress and environment.
In your first visit to a reflexologist they will conduct a full medical and lifestyle consultation with you so that they can adequately assess your needs as a complete individual. The reflexologist may be able to suggest certain lifestyle or dietary changes or refer you to a different type of therapist which will complement the reflexology session and put you on your path to wellness.
It should be noted that a reflexologist is not medically trained and their advice does not outweigh or interfere in any way with that of your doctor.