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Medical Expert Opinions

Dr. Ronald Johnston on

Atypical Moles (Dysplastic Moles)

Florida dermatologist Dr. Ronald Johnston, MD, provides his medical expert opinion on his work with dysplastic lesions:

Dr. Ronald Johnston, M.D. biography, work, and clinical interests

An atypical or dysplastic mole is one that often looks different clinically and, when biopsied, has atypical features under the microscope; hence it is called atypical due to the irregular or unusual features.

The Expert Opinion describes atypical or dysplastic moles in terms of potential health risks as well as formation of moles and their relationship to melanocytes. The expert opinion also discusses diagnosis, treatment, examples, and other general information regarding dysplastic moles.

Dr. Novick on

Dermapen® Medical Microneedling for Scars, Melasma and De-wrinkling applications

New York dermatologist Dr. Nelson Novick, MD, provides his medical expert opinion on his work using the Dermapen® microneedling technique:

Dr. Nelson Novick, M.D. biography, work, and clinical interests

The Dermapen® has also been used to treat melasma, post-inflammatory hyperpigmentation and enlarged pores, and for improving fine and medium wrinkling, crinkling and crepey skin. Dr. Novick also discusses his experience using microneedling to treat hypopigmented scars by applying tyrosine, thus enhancing melanin production and helping skin pigmentation.

Featured Reviews

Xeomin® for Wrinkles

Xeomin® (incobotulinumtoxin A) is a form of botulinum toxin used to reduce the appearance of aging skin, including wrinkles and furrows. Xeomin® has been used in recent years to treat a neurological disorder called cervical dysontia. It was approved by the FDA in 2012 for the treatment of glabellar furrows, deep wrinkles on the forehead. Doctors may also choose to use Xeomin® to treat wrinkles around the eyes, lines in the upper lips, drooping of the corners of the mouth, as well as prominent bands in the neck. Similar to other forms of botulinum toxin, such as Botox® and Dysport®, Xeomin® is injected into the skin to temporarily immobilize the facial muscles that cause facial wrinkles and frowns.

Asthma Types & Severity

There are different types of asthma that may be categorized according to the primary trigger or pattern of symptoms. For instance, exercise-induced asthma (EIA) is triggered by exercise, and allergic asthma is triggered by allergens. Asthma may also be classified according to the severity of symptoms. This classification is helpful for establishing an asthma treatment plan.


Featured Doctor

Stephanie L. Cotell, M.D.

Dr. Stephanie L. Cotell, Gahanna OH Dr. Cotell practices both general and cosmetic surgical dermatology. Her cosmetic and aesthetic interests include skin rejuvenation including Botox® and dermal fillers, such as Restylane®, Radiesse®, Perlane® and Juvederm®. She also performs laser hair removal as well as treatment of blood vessels from the face and legs using lasers and/or sclerotherapy injections. She emphasizes a comprehensive approach to skin care including full body skin checks for skin cancer detection as well as counsels patients on how to attain and maintain healthy skin.


Latest Content

Dermapen® Medical Microneedling for Scars, Melasma and De-wrinkling applications
This Medical Expert Opinion by Dr. Nelson Novick describes medical microneedling employing the Dermapen®. This technique, in contrast to laser treatments which can cause scarring and permanent pigment loss, may be performed safely on all skin sites, including the neck, decollete, hands, arms, legs and trunk.

Xeomin® for Wrinkles
This Health Guide by Dr. Mark Becker describes the use of Xeomin® for treatment of aging skin. Xeomin® also has uses in treating cervical dysontia, glabellar furrows, wrinkles around the eyes, lines in the upper lips, drooping of the corners of the mouth, prominent bands in the neck.

Oral Contraceptives for Acne
The use of birth control pills has been shown to lead to fewer acne flares, fewer acne lesions during flares, and less inflammation.

Wrinkle Scale
The optimal treatment for wrinkles and other signs of aging skin depends on several factors, including the degree of wrinkling. A wrinkle scale has been developed that classifies signs of aging skin.

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