Magan Medical Clinic, Inc.
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Magan Medical Clinic, Dermatology
420 W Rowland St, 2nd Floor
Covina, CA 91723

(626) 331-6411 Phone - General line
(626) 251-1500 Phone - Appointments (Open Mon-Fri, 7:30 am-5:30 pm)
(626) 251-1552 Fax


Dermatology Staff
Our wonderful dermatology staff. Board certified dermatologist
 Charles Chiang, M.D., F.A.A.D. is in the center


We provide quality dermatology care with compassion. Our specialty is medical dermatology, including:

  • Acne (both teenage and adult onset; we are enrolled in iPledge if Accutane is needed)
  • Eczema / atopic dermatitis (in both children and adults)
  • Psoriasis
  • Skin cancer / skin exams
  • Moles
  • Warts / molluscum
  • Rosacea
  • Pigmentation disorders
  • Alopecia areata (autoimmune non-scarring hair loss)
  • Scarring hair loss (autoinflammatory scarring hair loss)
  • Phototherapy (we have a nbUVB booth and Dr. Chiang completed a phototherapy fellowship at UCSF)
  • Hives
  • Itching (pruritus)
  • Nail disorders

  • Note: Cosmetic treatments are not performed in Dermatology but instead by Magan's Medical Aesthetics Laser Center.

If you have psoriasis or hair questions, Dr. Chiang possesses special expertise. He completed fellowships in both fields at University of California, San Francisco where he saw a wide spectrum of patients (including the most severe), performed clinical trials, and published research.

We take pleasure in serving our community including Covina, West Covina, San Dimas, Rancho Cucamonga, Baldwin Park, Azusa, Glendora, Upland, El Monte, Duarte, Monrovia, Arcadia, La Puente, and Diamond Bar.

Same day appointments often available. No referral is necessary if you have PPO insurance. We accept a wide range of insurance plans (unfortunately, we do not accept Medi-Cal as primary insurance, only as secondary insurance).

For appointments, please call (626) 251-1500. We look forward to serving you!


"What's New in..."

A monthly column by Dr. Chiang


September 2019

What's New in Hidradenitis suppurativa

What's new in Hidradenitis suppurativa

Hidradenitis suppurativa is essentially scarring acne of the armpits, groin, and the area underneath the breasts. Technically, it is a "chronic, inflammatory, recurrent, debilitating skin disease of the hair follicle… with predilection for intertriginous areas of the body (most commonly the axillae and inguinal and anogenital regions)." It affects about 1% of the population and treatment for severe cases can be challenging.

Standard first line therapy often includes lifestyle recommendations, prescription medications, and potential surgery. For lifestyle recommendations, the clear cut recommendations are weight loss and smoking cessation as these can worsen the condition. For medications, it often begins with the same options as for acne including antibiotic pills and gels. For surgery, simple drainage is only recommended for painful recently flared abscesses as there is essentially a 100% recurrence rate. Most surgery involves most complicated procedures, whether "deroofing" tunnels underneath the skin which often involves weeks of an open wound that is purposely not closed with sutures, or "wide local excision" with removal of large areas of tissue.

One recommendation that is increasing in popularity is oral zinc. The dosage recommended is usually zinc gluconate 90 mg daily for 3 months. There were small studies of 22 to 54 patients which found improvement. However, the official clinical guidelines from the United States and Canadian Hidradenitis Suppurativa Foundations only state "May recommend oral zinc supplements (weak evidence)." Even though the efficacy may be mild, zinc is considered safe for most patients (please check with your doctor before starting) with the main side effect being nausea.

If you have hidradenitis suppurativa or another skin condition, consider making an appointment for dermatology consultation at (626) 251-1500 to discuss your options.

Charles Chiang, MD, FAAD
Board Certified Dermatologist

- Alikhan A, et al. North American clinical management guidelines for hidradenitis suppurativa: A publication from the United States and Canadian Hidradenitis Suppurativa Foundations Part I: Diagnosis, evaluation, and the use of complementary and procedural management. J Am Acad Dermatol 2019

-          van der Zee HH, et al. Deroofing: a tissue-saving surgical technique for the treatment of mild to moderate hidradenitis suppurativa lesions. J Am Acad Dermatol 2019

-          Brocard A, et al. Hidradenitis suppurativa and zinc: a new therapeutic approach. A pilot study. Dermatology 2007

-          Hessam S, et al. Combination of oral zinc gluconate and topical triclosan: an anti-inflammatory treatment modality for initial hidradenitis suppurativa. J Dermatol Sci 2016

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