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Medical Dermatology

Diagnostic Clarity.

A chronic rash is more than a surface irritation; it is a clinical manifestation of immune dysfunction. At Modern Dermatology, we specialize in advanced diagnostics to identify the root cause of persistent skin inflammation.

Expert clinical rash evaluation in Tampa

The Diagnostic Gap.

Many patients arrive at our South Tampa office after months of failed over-the-counter treatments. Rashes often persist because the trigger has not been identified. Whether your condition is allergic, irritant, or autoimmune, we utilize clinical tools to provide a definitive path toward clear skin.

Advanced Protocols

Biopsy & Patch Testing.

We move beyond visual guessing. For complex cases, we utilize Clinical Punch Biopsies to analyze the skin at a cellular level. For suspected environmental triggers, our Allergy Patch Testing identifies specific reactions to over 80 common allergens, from skincare preservatives to metallic compounds.

Diagnosis

Common Classifications.

Contact Dermatitis

A red, itchy rash caused by direct contact with a substance. This includes allergic reactions (poison ivy, nickel) or irritant reactions (harsh soaps).

Seborrheic Dermatitis

Primarily affecting the scalp and face, this inflammatory condition thrives in high-humidity climates like Tampa and requires antifungal modulation.

Pityriasis Rosea

A viral-associated rash that begins with a "herald patch." While temporary, it requires professional diagnosis to rule out more serious inflammatory conditions.

Board-Certified Specialists

Meet Your Care Team.

Dr. Alexandra Grob

Dr. Grob

Founder & Dermatologist specializing in the clinical diagnosis of complex rashes and systemic inflammatory skin disease.

Dr. Alexander Dane

Dr. Dane

Double Board-Certified Surgeon providing advanced therapeutic biopsies and comprehensive clinical oversight for inflammatory disorders.

Rash & Dermatitis FAQ.

Is my rash contagious?
Most inflammatory rashes are not contagious. However, without a clinical exam, it is impossible to distinguish a rash from a fungal or bacterial infection that could be spread.
Why won't hydrocortisone work?
OTC hydrocortisone is very low potency. Clinical rashes often require prescription-strength modulation to fully stop the immune response.
What is a skin biopsy for a rash?
We remove a tiny sample of skin under local anesthesia to examine the cellular structure, providing a definitive medical diagnosis for persistent or atypical rashes.
Can stress cause a rash?
Yes. Stress releases cortisol which can trigger or exacerbate inflammatory conditions like eczema, psoriasis, or hives (urticaria).
How is contact dermatitis diagnosed?
We use Patch Testing to identify specific allergens in your daily environment that may be triggering your skin's immune system.
How long does a rash consultation take?
A thorough diagnostic evaluation typically takes 15-20 minutes, including a full review of your environmental exposures and skincare routine.
Does insurance cover patch testing?
Yes. Allergy patch testing is a diagnostic medical procedure and is typically covered by Medicare and private insurance for chronic dermatitis.