Sometimes, especially to the untrained eye, genital psoriasis can look like an STD. Assure your partner that your skin isn't contagious. Use non-latex condoms to avoid problems with treatments that make latex condoms less effective. You can find them in most supermarkets and pharmacies. Lubricants can make sex more enjoyable for both men and women. Clean your genital area afterward, and apply more medication if you need to. Let your partner know when it's not comfortable to have sex, but don't shut them out.