The Safety of Lasers
The only physical risk in laser therapy is the risk of eye damage. While never reported to have occurred, suitable protective eye wear is worn by the patient and operator during laser procedures. Sometimes the treated area will become red, feel warm, or temporarily ache. These reactions are a result of increased microcirculation and removal of waste products.
The energy of therapeutic lasers is non-ionizing, which means there is no risk of cancerous changes in treated areas.