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Number 2 Medical Dermatology
(Chronic & Inflammatory Skin Diseases)

Number 1 Skin Cancer & Pre-Cancer Care
Number 1 Medical Dermatology
(Chronic & Inflammatory Skin Diseases)
Number 3 Pigment & Lesion Disorders
Number 4 Non-Cancer Growth
Number 5 Surgical Dermatology (Non-Cancer Procedures)
Number 6 Cosmetic Dermatology
Autoimmune Skin Disorders PDF

• Autoimmune Skin Disorders

(When the immune system mistakenly targets the skin)

What Are Autoimmune Skin Disorders?

Autoimmune skin disorders are conditions where your immune system becomes overactive and mistakenly attacks parts of your body—such as the skin, hair follicles, blood vessels, or connective tissue. This can lead to rashes, blisters, sores, color changes, or scarring.

These conditions are not contagious, and many can be well-managed with the right diagnosis and treatment plan.

Common Autoimmune Skin Conditions We Evaluate

Autoimmune skin disorders can look very different. Examples include:

1) Inflammatory rashes

  • Cutaneous lupus (often sun-sensitive rashes)

  • Dermatomyositis (rash with possible muscle weakness)

2) Blistering autoimmune conditions

  • Bullous pemphigoid (tense blisters, often very itchy)

  • Pemphigus (more fragile blisters/erosions)

3) Blood vessel inflammation

  • Cutaneous vasculitis (often purple spots on legs, sometimes tender)

4) Pigment and hair-related autoimmune conditions

  • Vitiligo (white patches)

  • Alopecia areata (patchy hair loss)

5) Connective tissue autoimmune conditions

  • Scleroderma/morphea (firm, thickened patches)

Important: Many non-autoimmune conditions can mimic autoimmune rashes—so proper evaluation matters.

Typical Symptoms

You may notice:

  • A rash that persists, spreads, or keeps returning

  • Sun sensitivity (rash worsens after sun exposure)

  • Blisters, open sores, crusting, or painful erosions

  • Purple spots or bruising-like marks, especially on legs

  • Scalp tenderness or patchy hair loss

  • Mouth sores or lip involvement

  • Burning, stinging, or intense itching

  • Nail changes

How We Diagnose Autoimmune Skin Disorders

Diagnosis usually involves a combination of:

1) Detailed history

We ask about:

  • When the rash started and how it behaves

  • Medications and recent changes

  • Sun exposure patterns

  • Joint pain, fatigue, fevers, muscle weakness, mouth sores

  • Family history of autoimmune disease

2) Full skin exam

We look for pattern clues (location, shape, color, scale, blisters).

3) Skin biopsy (often key)

A small sample of skin is taken to examine under the microscope.

  • Sometimes a special test called direct immunofluorescence (DIF) is needed (especially for blistering disorders).
    This requires a specific biopsy technique and location—your dermatologist will guide this.

4) Blood tests (when appropriate)

Used to look for inflammation markers, autoimmune antibodies, or to help rule in/out systemic involvement.

5) Coordination with other specialists

If needed, we coordinate care with rheumatology, pulmonology, neurology, or ophthalmology depending on symptoms.

Treatment Options

Treatment depends on the diagnosis, severity, and whether other organs are involved.

1) Skin-directed treatments

  • Gentle skin care + anti-inflammatory prescription creams/ointments

  • Sun protection plans (critical for many autoimmune rashes)

  • Wound care for sores or erosions

2) Systemic treatments (when needed)

For more significant disease, treatments may include oral or injectable medications that calm the immune system. Your dermatologist will discuss:

  • Benefits and risks

  • Monitoring needs (labs, infection prevention, vaccines when appropriate)

  • Pregnancy considerations (if relevant)

 

Pre-Op Instructions (Before Your Autoimmune Rash Visit / Biopsy)

(Not surgery—these are “before your appointment” tips.)

Before your visit

  • Take photos of the rash when it’s flaring (many rashes change day-to-day).

  • Bring a list of:

    • All medications and supplements (including OTC and “natural” products)

    • New products that touch your skin (soaps, creams, cosmetics)

  • Write down any “whole-body” symptoms:

    • Fatigue, fevers, joint pain, muscle weakness

    • Mouth sores, eye irritation

    • Shortness of breath or chest symptoms

If a biopsy may be done

  • Tell us if you take blood thinners or bruise easily.

⚠️ Do not stop prescribed blood thinners unless your prescribing clinician instructs you.

  • Tell us about allergies to adhesives, antiseptics, or numbing medicine.

Post-Op Instructions (After Biopsy / Starting Treatment)

If you had a biopsy

  • Keep the bandage on and dry for 24 hours (unless instructed otherwise).

  • After 24 hours, daily:

    1. Gently clean with mild soap and water

    2. Pat dry

    3. Apply a thin layer of ointment if instructed

    4. Cover with a clean bandage

  • Avoid soaking (pools/hot tubs/baths) until healed.

  • Call if you have increasing redness, warmth, swelling, pus, fever, or bleeding that won’t stop with pressure.

When to Seek Urgent Care

Seek urgent or emergency care if you have:

  • Trouble breathing, chest pain, severe weakness, or confusion

  • Rapidly spreading blisters, skin pain, or widespread skin peeling

  • Swelling of lips/tongue/throat or difficulty swallowing

  • High fever with rapidly worsening rash

Call our office promptly if:

  • New blisters, sores in the mouth/eyes, or rapidly worsening symptoms

  • Signs of infection in open skin (increasing pain, pus, fever)

Frequently Asked Questions

Are autoimmune skin disorders contagious?

No. You cannot catch an autoimmune skin disorder from someone else.

Not always. Some conditions are limited to the skin, while others can involve internal organs. Your dermatologist will evaluate symptoms and testing to clarify this.

Many rashes look similar on the surface. A biopsy can provide the most accurate diagnosis and guide the safest, most effective treatment.

DIF is a special biopsy test that looks for immune proteins in the skin—especially helpful for autoimmune blistering disorders.

Sometimes. Blood tests can help confirm certain diagnoses, assess inflammation, and screen for systemic involvement.

Stress may worsen inflammation and trigger flares in some autoimmune conditions. Managing stress can be a helpful part of an overall plan.

For several autoimmune disorders (especially some forms of lupus), sun can trigger or worsen rashes. We’ll give you a sun protection plan tailored to your condition.

Many treatments can be used safely with proper monitoring. If immune-suppressing medication is needed, we’ll discuss side effects, infection precautions, and lab monitoring.

It depends on the diagnosis and severity. Some patients improve in 1–2 weeks, while others require several weeks to months and a maintenance plan.