Medically reviewed by Susan Bard, MD Having psoriasis, an autoimmune condition that causes inflamed skin patches, can make you more likely to develop certain skin infections. A combination of ...

One key difference is that psoriasis often presents as thick, silvery scales on red, inflamed patches of skin, while fungal infections typically manifest as red or pinkish rashes with raised borders.

Plaque psoriasis, the most common type ... and scalp. Ringworm is a fungal skin infection that appears as an itchy, round patch with a clear center on many areas of the skin.