A contagious fungal disease characterized by a red circular patch of blisters is known as what?

The correct answer is Tinea, which refers to a group of fungal infections that can affect the skin, hair, and nails. Tinea is commonly known as "ringworm," which is somewhat misleading since it is not caused by a worm but rather by fungi. This condition typically presents as a red, circular patch with raised edges and clear skin in the center, resembling a ring, which is indicative of its name. It is important to note that Tinea is highly contagious and can be spread through direct skin contact or indirectly through contaminated objects, making awareness of this condition crucial in nail and skin care practices.

In contrast, psoriasis is a chronic autoimmune condition characterized by the rapid growth of skin cells, leading to thick, red, scaly patches. Eczema, also known as atopic dermatitis, is an inflammatory skin condition marked by itchy, inflamed skin but does not typically present as circular blisters. Dermatitis is a broad term that refers to general inflammation of the skin, and while it may cause redness and irritation, it is not specifically associated with the circular patches described in the question. Understanding the specific characteristics of these conditions helps differentiate them from Tinea.