What is it?

When your body reacts to an allergen as a threat, your immune system responds, causing allergic rashes. These rashes may appear after eating a food, taking a medication, coming into contact with an allergen, or inhaling an immune-stimulating element.

An allergic rash might develop gradually or all at once. It may accompany other allergy symptoms like hives, swelling, or sneezing, and it can be either mild or serious.

Common Symptoms

• Red or blotchy skin
• Itching or sensitivity
• Patchy or raised areas
• Dry or irritated spots
• Swelling around the rash
• Rashes that worsen after exposure to certain foods or environments

Triggers and Causes

These rashes may be linked to:

• Foods (milk, peanuts, eggs, shellfish, etc.)
• Medications
• Insect bites or stings
• Pollen, dust mites, pet dander
• New skincare or haircare products
• Contact with allergens like latex or fragrances

When to See a Specialist?

You should seek care if:

• The rash keeps getting worse
• It spreads quickly or involves swelling
• You experience symptoms shortly after eating a food
• Over-the-counter creams don’t help
• You want to identify the exact allergen causing the rash