If your doctor suspects that your allergic rashes are do to a contact allergy, he might perform a patch test to determine what exactly you are allergic to. Click here to learn more.

If an inhaled or ingested allergen is causing an allergic rash, your doctor might perform a skin prick test like the one in this interesting video.

Some allergic rashes are the result of direct contact with an allergen; other times they are the result of a food or drug allergy. Explore this topic page to learn about all kinds of skin allergies.

Contact dermatitis (allergic rash) results from touching an allergen or irritating substance. Take a look at this helpful article that even includes pictures.

Allergic rashes from an adverse drug reaction can be as minor as a small itchy patch, or as devastating as massive skin death and slough. Find out which medications might put you at risk.

Everyone knows scratching can make any rash, even an allergic rash, worse. Scientists are learning more about why scratching an itch can be so gratifying.

Food allergy symptoms can manifest in anything from an allergic rash to anaphylaxis. This advocacy Web site covers all topics relevant to living with a food allergy.

Explore this index page of a dermatology atlas Web site to find an allergic rash similar to yours. Choose pictures by body site or diagnosis, Viewer discretion is advised!

You might break out in hives if you're stung by a bee or come in contact with any other allergens. This encyclopedia entry goes into more detail.

Get the scoop on urticaria, a skin eruption that might be due to an allergic reaction. A quick and easy read.

Learn more about common skin conditions, such as eczema and allergic rashes, with this excellent overview containing integrated links to pictures and other helpful articles.

Rashes are extremely common, especially in children. This page is a great resource for learning rash terminology and differential diagnoses, like viral illness and fungal infections.