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According to experts, about 8 million people have dermatitis, a term used to describe skin inflammation caused by allergies, irritants, infections, and other substances in the environment.

Irritant contact dermatitis occurs when the skin comes in contact with a substance in the environment that acts as an irritant. Symptoms of irritant contact dermatitis include a red rash or bumps, swelling of the skin, itching, dry skin patches, and pain or tenderness in the affected area. Occasionally, irritant contact dermatitis can cause skin blistering and ulceration.

To help Americans learn more about common household skin irritants, WebMD’s video crew hit the streets. We asked about people’s concerns when it comes to household skin irritants and took their questions to WebMD expert Holly McCoppin, MD, clinical instructor in dermatology at Emory University.

Do you have questions about common household irritants that affect you or your family? Click on the questions below to read our doctors’ answers.

Unknown Skin ProblemsOne person reports having dry, itchy skin, but the doctor found no medical reason. What can be done to manage dry skin?

Spider Bites Spider bites can be uncomfortable. Lameate from Boston asks McCoppin how to care for a spider bite.

Switching Skincare ProductsHow often should you change skin care products? Amity from California asks our dermatology expert.

Humidity and SkincareVal recently moved to Atlanta and asks our expert about changing skin care products due to the intense heat and humidity.

Sunscreen ApplicationAre you applying sunscreen properly? McCoppin shares tips with Leo from North Carolina on protecting skin with sunscreen.

Sunburn and MelanomaWarren from Texas wants to know if severe sunburn is associated with developing melanoma.

Eczema on LegsDo you have eczema on your legs? McCoppin provides Cheryl in Minnesota with tips on dealing with this skin condition.

Razor BumpsSam from New York wants to know how he can avoid razor bumps after shaving.

Avoiding the DermatologistBen from Georgia seeks skin care tips to avoid repeat visits to his dermatologist.

Organic-SkincareLena from New York wants to know how organic skin care products measure up to other skin care products.

Itchy SkinSam from New York has dry, itchy skin and wants to know how to care for his skin. McCoppin provides tips for soothing skin.

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Skin Irritants Poll

Which household product irritates your skin the most?

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