Skin irritation and redness is commonly called dermatitis. Skin changes such as swelling, burning or itching are symptoms of dermatitis. There can be many reasons for dermatitis and it can be different. Dermatitis can cause skin blisters or skin flake off. Problems like eczema, dandruff and rashes also come under dermatitis. Dermatitis is not an infectious problem. But after this, the person is not able to do any work in a comfortable way. This problem can be easily treated with medicines and self-care.