Contact dermatitis is a localized rash or irritation of the skin caused by contact with a foreign substance. Only the superficial regions of the skin are affected in contact dermatitis. Inflammation of the affected tissue is present in the epidermis and the outer dermis Contact dermatitis results in large, burning, and itchy rashes. These can take anywhere from several days to weeks to heal. This differentiates it from contact urticaria , in which a rash appears within minutes of exposure and then fades away within minutes to hours. Even after days, contact dermatitis fades only if the skin no longer comes in contact with the allergen or irritant. Chronic contact dermatitis can develop when the removal of the offending agent no longer provides expected relief. Irritant dermatitis is usually confined to the area where the trigger actually touched the skin, whereas allergic dermatitis may be more widespread on the skin. Symptoms of both forms include the following: Red rash. This is the usual reaction. The rash appears immediately in irritant contact dermatitis; in allergic contact dermatitis, the rash sometimes does not appear until 24–72 hours after exposure to the allergen Blisters or wheals. Blisters, wheals, and urticarial often form in a pattern where skin was directly exposed to the allergen or irritant Itchy, burning skin. Irritant contact dermatitis tends to be more painful than itchy, while allergic contact dermatitis often itches. While either form of contact dermatitis can affect any part of the body, irritant contact dermatitis often affects the hands, which have been exposed by resting in or dipping into a container  containing the irritant. Common causes of allergic contact dermatitis include: nickel allergy, 14K or 18K gold, Balsam of Peru and chromium. In the Americas they include the oily coating from plants of the genus Toxicodendron: poison ivy, poison oak, and poison sumac. Millions of cases occur each year in North America alone. The alkyl resorcinols in Grevillea banksii and Grevillea 'Robyn Gordon' are responsible for contact dermatitis Bilobol, another alkyl resorcinol found in Ginkgo biloba fruits, is also a strong skin irritant. Contact dermatitis is a red, itchy rash caused by direct contact with a substance or an allergic reaction to it online journals  on contact dermatitis has been successfully publishing quality Research articles from many years and looking forward to frame up an eminent , outstanding issues with best quality research articles in this year. We request you to kindly submit and publish your paper in this best journal and get global acknowledgment