Photodynamic Therapy (PDT) information
Before your treatment
Tell your doctor or nurse if you:
- Take any medications, supplements or vitamins
- Have or have ever had cold sores or shingles
- Are pregnant or plan to become pregnant.
- Have a condition that makes you more sensitive to light, including lupus or porphyria
The day of your treatment
- Don’t use creams, lotions, or makeup on the treatment area.
- Bring something to protect the treatment area from UV rays. If the treatment area is on your face, bring a wide-brimmed hat. If it isn’t on your face, wear clothing that covers the area.
- Wear loose, comfortable clothes
During your treatment
- A medication will be applied to the treatment area. This will typically take between 30-60 minutes to be absorbed.
- A blue light will be shined on the treatment area for about 17 minutes. This will activate the medication.
- You may experience burning or stinging pain during treatment.
After Your Treatment
- For 48 hours after your treatment, don’t expose the treated area to bright light. This includes: sunlight (even through car winodws), bright indoor lights (such as medical exam lights). Normal house lighting is okay. If it’s necessary to be outside, make sure to wear a broad spectrum sunscreen of SPF 30 and above, a wide brimmed hat and/or sun protective clothing.
- For a few days, you may experience: redness (like a bad sunburn), swelling, peeling, crusting, mild itching. The burning and stinging you experienced during treatment may last for up to 24 hours.
- Follow these steps to care for the treated area: Apply a cool compress to the a few times a day for the first 24 hours. Starting the day after your treatment, use a gentle, fragrance-free cleanser to clean the treated area. Use a clean towel to pat your skin dry, do not rub or scrub. Apply a thick moisturizer, such as Cetaphil or Vaseline, to the area to keep your skin moist. If a scab forms, apply Vaseline to it (do not pick it off).
- We recommend Tylenol or ibuprofen for pain.
Call our office if you:
- Have a temperature of 100.4 °F (38 °C) or higher
- Have pain not controlled by Tylenol or ibuprofen
- Develop blisters on the treated area
- Have any questions or unexpected problems