Which type of skin condition involves swelling and redness due to inflammation?

Dermatitis is indeed the condition characterized by swelling and redness due to inflammation. It encompasses a variety of inflammatory skin issues, including allergic reactions and reactions to irritants. The hallmark features of dermatitis are the inflammation, which manifests as redness, swelling, and often itching or discomfort.

For context, cellulitis is a more generalized and deeper skin infection that can also involve inflammation, but it typically presents with more severe systemic symptoms and requires different types of treatment. Scar tissue refers to fibrous tissue that replaces normal skin structure after healing from an injury, and chloasma refers to brown or grey-brown patches on the skin, often related to hormonal changes, which does not involve inflammation in the same manner. Understanding these distinctions helps clarify why dermatitis is the correct answer with regard to inflammation, swelling, and redness.