there are many skin conditions that can occur on the penis and some can mimic psoriasis. yes psoriasis can occur in this area but rather than self-diagnose the problem he should see his medical provider. i don't know what kind of medications that your husband is taking (you failed to mention them) so i have no idea if there is a relationship.
penial psoriasis does it exist? . what i need to know is can this be caused by medications that have been prescribed for my husband.?