After a patient has met the necessary criteria for treatment, a pertinent medical history should be obtained to determine any exclusionary criteria. Exclusionary criteria for light therapy includes, but is not limited to:
- Unprotected sun exposure or use of tanning beds or creams in areas to be treated.
This applied to all hand pieces except the LuxR and LuxRs, which are designed to treat all skin types, including tanned skin. Protected sun exposure means wearing protective clothing or the daily us of an SPF-30 or greater sunscreen, reapplied every 2 hours. Patient should be advised to discontinue tanning for weeks prior to treatment, during treatment course and 4-6 weeks after treatment. This will reduce the chance of skin color changes and development of new pigmented lesions.
There is no clinical evidence at this time of fetal harm from light-based systems, but the results of the treatment may be erratic or unreliable due to fluctuations in hormone levels, hair growth cycles and physiological skin conditions.
- Menstral Dysfunction
Patients with menstral dysfunction or hyperandrogenism should be referred to an endocrinologist for evaluation and possible medical treatment. These patients tend to have hirsutism secondary to their disease, which may respond to medical treatment.
- Use of mechanical epilation less than six weeks prior to treatment for patients seeking hair removal.
This includes plucking, waxing, tweezing, electrolysis, or sugaring. Patient should also refrain from these practices during the treatment course.
Confirm with patient any allergies to medications, latex, foods or other substances which may be used during the treatment course.
- History of seizures
Flashing lights may trigger seizure.
Both prescription and non-prescription. Be sure to include herbal and natural remedies as some of these may cause photosensitivity. Patients should not be taking Accutane, anti-coagulants or St. John’s Wort. For patients taking a photosensitizing medication, preform test spots 24 hours before treatment. Accutane changes the underlying structure of the skin, which may cause unreliable results. It may also increase skin sensitivity to light.
- History of keloid and hypertrophic scar formation.
Although scarring is rare, picking or pulling off scabs or crusting can result in scarring. For this reason it is recommended to exclude from treating patients with known tendency to form keloid or hypertrophic scars.
- Active Infection / Immunosuppression
Actuve infections and immunosuppression compromise the healing ability of the body. Reschedule the patient when infection is cleared.
- Open Lesions
Treatment should only be done on intact, healthy skin, with the exception of acne affected skin.
- Herpes I or II within the treatment area
Patients should consult their primary care providers for medical evaluation and possible prophylaxis prior to treatment.
- Tretinoin (Retin-A, Renova)
Although Tretinoin used in the area to be treated is not absolutely contraindicated, it is known to make skin more sensitive and prone to exfoliation. Patient is better advised to discontinue the use of exfoliating creams and other exfoliating products 2 weeks prior to and during treatment course.