Psoriasis of the nail can be very hard to treat, and treatment is not always successful. Psoriasis is a common chronic skin condition. A person with psoriasis typically has patches of raised, red skin with silvery scales. There are not currently any cures fro nail psoriasis, but there are treatments that can be used to mitigate against any additional symptoms, such as fungal infections of the nail. The EB doctors have been looking at your comments and have answered some of the common questions below. It is common for psoriasis to be found in members of the same family. Nail psoriasis produces yellow pitted nails that can be confused with nail fungus.