Zay Nyi Nyi/Shutterstock Share on Pinterest Tinea capitis is a fungal infection on the scalp. Photography courtesy of Grook Da Oger/Wikimedia About half of all people with plaque psoriasis will ...

"It tends to more commonly affect the toenails, often alongside infection of the feet, known as tinea pedis." Nail psoriasis and onychomycosis (nail fungus) are very similar in appearance ...