Laser therapy uses focused light to stimulate natural healing processes within the body. This non-invasive approach is often utilized for pain relief and tissue repair. Many considering this treatment wonder if it can, at times, lead to an increase in pain. Temporary changes in sensation can occur as the body responds to therapy.
Understanding How Laser Therapy Interacts with the Body
Therapeutic lasers deliver photons, or light particles, into biological tissues. These photons are absorbed by chromophores, light-sensitive molecules within cells, initiating photobiomodulation (PBM). PBM enhances cellular metabolism, promotes adenosine triphosphate (ATP) production, and stimulates cellular repair mechanisms. This interaction also reduces inflammation and increases blood circulation. Different wavelengths and intensities influence how deeply the light penetrates and the specific cellular responses it elicits.
Why Pain Might Temporarily Increase
Individuals may experience a temporary increase in pain following laser therapy. This can be part of the body’s natural healing response, sometimes called a “healing crisis” or flare-up. During this phase, the body might temporarily heighten its inflammatory response to clear damaged tissue and initiate repair.
Laser energy can also stimulate nerve endings, activating previously dormant pain pathways or increasing the sensitivity of irritated nerves. This can lead to a brief sensation of increased discomfort or heightened awareness of the treated area. Additionally, tissues, particularly muscles, may react with temporary spasms or increased tightness. This muscular response is typically short-lived.
Pain might also temporarily worsen if laser parameters, such as intensity or duration, are not optimally matched to the individual’s condition or applied incorrectly. Overstimulation of tissues can occur, leading to mild irritation or an exaggerated physiological response. In some instances, laser therapy might inadvertently highlight or briefly exacerbate an underlying, undiagnosed condition. These increases in pain are generally temporary, often resolving within hours to a day or two, as the body adapts and continues its healing process.
Recognizing When Pain is a Concern
Distinguishing between normal, temporary post-treatment sensations and pain requiring attention is important. Temporary discomfort typically resolves within a few hours to a day. Pain that persists for several days or steadily worsens over time may indicate a need for further evaluation.
The intensity and nature of the pain provide important clues. Mild discomfort or a dull ache in the treated area is generally a normal response. In contrast, severe, sharp, shooting, or radiating pain is often a sign of concern. Additionally, sensations like burning, intense tingling, or increasing numbness warrant closer inspection. Any accompanying symptoms like blistering, significant skin discoloration, or new weakness in the treated area are also concerning indicators.
Steps to Take if Pain Worsens
If pain significantly worsens or persists beyond the expected temporary period after laser therapy, communicate immediately with your treating therapist or doctor. They can assess your symptoms and determine if any adjustments to the treatment plan are necessary. If the pain is severe or accompanied by concerning symptoms like blistering or severe swelling, cease further laser therapy sessions until professional medical advice is obtained.
Seeking medical attention is recommended if symptoms are severe, persistent, or include signs of an adverse reaction, such as a burn or significant skin changes. Choosing a qualified and experienced practitioner for laser therapy is also a preventative measure, as they are better equipped to tailor treatments and manage potential responses.