Which condition is commonly known for being associated with allergic reactions?

Contact dermatitis is a common inflammatory skin condition that arises as a result of an allergic or irritant reaction to substances that come into contact with the skin. This condition is characterized by redness, itching, and sometimes blistering, depending on the severity of the reaction. Allergic contact dermatitis occurs specifically when the immune system reacts to a foreign substance, such as certain metals, perfumes, or plants like poison ivy.

In contrast, while other conditions such as psoriasis, melasma, and folliculitis can have their own distinct causes and implications, they are not primarily associated with allergic reactions. Psoriasis is related to an autoimmune dysfunction and involves rapid skin cell turnover. Melasma is a hyperpigmentation condition often triggered by hormonal changes and sun exposure, and folliculitis is an infection or inflammation of hair follicles, typically caused by bacterial or fungal agents rather than allergies. Therefore, contact dermatitis stands out as the condition most closely linked to allergies.