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Shares & Saves. Save. The most common types of allergic skin rashes are caused by perfume, soap, detergent and cosmetics reactions, chemicals from latex, elastic or rubber products and chemicals and dyes that are present in clothing.Other People Are Reading.hares & Saves. Save. The most common types of allergic skin rashes are caused by perfume, soap, detergent and cosmetics reactions, chemicals from latex, elastic or rubber products and chemicals and dyes that are present in clothing.
1 Common rashes include eczema, poison ivy, hives, and heat rash. 2  Infections that cause rashes may be fungal, bacterial, parasitic, or viral. 3  Over-the-counter products may be helpful treatments for many skin rashes.4  Rashes lasting more than a few days that are unexplained should be evaluated by a doctor.ash facts. 1  Rash is not a specific diagnosis. 2  Instead it means skin inflammation and discoloration that changes the way the skin looks. 3  Common rashes include eczema, poison ivy, hives, and heat rash.