Profile view of a male teenager's face with acne

Photopatch Testing | Technology in Dermatology

Dr. Dathan Hamann is a world-renowned expert in patch testing for the diagnosis of allergic contact dermatitis. His expertise extends to photopatch testing, a state of the art technology in dermatology for diagnosing light-activated allergic contact dermatitis.

The photopatch test is used to detect photoallergic reactions to various antigens that can be found in sunscreens, fragrances, or medicines. Various panels are applied to the patient’s back, and then they are exposed to UVA light.

After the exposure, panels are worn for two days, like standard patch testing, before Dr. Hamann would complete the reading and determine final results. Photo patch testing is the only way to make a definitive diagnosis of photoallergic eczema or photo allergic contact dermatitis.

Wood’s Lamp

The Wood’s Lamp is a small, hand-held device that illuminates areas of your skin with a black light to detect bacterial or fungal infections. It can also be used to help detect conditions such a vitiligo or even a corneal abrasion on the surface of the eye. The light is held over the skin in a dark room, and if certain bacteria, fungi, or skin pigment changes are present, the affected area will change color under the light.

Profile view of a male teenager's face with acne
Profile view of a male teenager's face with acne

Electrodessication

An electrodessication unit is a multi-function electrosurgical device that can be used in a variety of dermatological procedures. It uses electricity to perform skin procedures. Because it can generate a wide range of power, it can be used for delicate cosmetic procedures or for controlling bleeding and limiting bruising during and after surgery. In some instances, it can also be used to treat early forms of skin cancer or precancers.

Cryotherapy

Cryotherapy uses liquid nitrogen to interact and change skin tissues. It is commonly used to destroy benign spots like warts or to treat precancerous spots. It can also be used on a cosmetic basis to remove skin tags, seborrheic keratoses, or to help lighten skin other benign spots. It can also be used to control itchy spots in some instances.

Profile view of a male teenager's face with acne

Saguaro Dermatology Reviews

Saguaro Dermatology | Phoenix Dermatology

About Saguaro Dermatology

Our comprehensive dermatology clinic is dedicated to providing you with the highest quality of care, innovative practices, helpful resources and state-of-the-art technology to prevent and treat a multitude of skin disorders. Led by Carsten R. Hamann, MD, PhD, Dathan Hamann, MD, FAAD, Michael McBride, DO, Millard Thaler, MD, Mohs Surgeon and Jenna Wald, MD, Mohs Surgeon, our passionate team looks forward to serving you with respect and compassion.

Contact Our Team Today:
Set up an appointment with our friendly staff at: 480.681.3300