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2. Allergic Contact Dermatitis

Allergic contact dermatitis is a reaction that starts with exposure to an allergen followed by an allergic reaction after exposure. The most prominent symptom of allergic contact dermatitis is itchiness. The rash is often red and raised but can also be scaly or swell up. Where the rash appears and its pattern depends on the allergen and the exposure. Contact dermatitis often spreads with scratching and can develop as long as two or three days after exposure to the irritant.

itchy allergic contact dermatitis rash on forearm

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.