Potential triggers include:
- Cosmetics
- Jewelry
- Cleaning products
- Fragrances
- Plants
Although it resembles allergies, diagnosis often requires identifying the exact irritant or trigger.
Autoimmune Disorders
Several autoimmune diseases may cause skin symptoms similar to allergic reactions.
Examples include:
- Lupus
- Dermatomyositis
- Vasculitis
- Celiac disease
These conditions involve immune system dysfunction and often require specialized treatment.
The Role of Diagnostic Testing
When symptoms persist, doctors typically begin a more detailed investigation.
The diagnostic process may include:
Medical History
Physicians ask questions about:
- Symptom onset
- Family history
- Environmental exposures
- Medications
- Diet
- Travel history
Even seemingly minor details can provide important clues.
Physical Examination
The appearance, distribution, and progression of a rash often help narrow the list of possible causes.
Doctors pay attention to:
- Location
- Shape
- Color
- Texture
- Associated symptoms
Blood Tests
Blood testing may reveal:
- Signs of infection
- Inflammation
- Autoimmune activity
- Organ dysfunction
- Abnormal immune responses
Allergy Testing
If allergies remain a possibility, specialized testing may identify specific triggers.