Timing is everything
Wait until you have developed some comfort with the person. Wait for the relationship to develop enough that you trust that the person will respond in a caring and respectful way. It is usually not a huge issue if the emotional relationship has been developed already. Experts and people with psoriasis agree that telling someone before the relationship is about to get physical works best so it’s not a surprise and doesn’t bring the fun to a halt.
Dating With Psoriasis: Find your own approach
Tell a potential partner in a confident and direct manner. Explain that your immune system is misreading things and that your body is producing more skin cells than it should, and that this is what it looks like. Then try to answer their questions as best as you can.
Telling a partner in such a way could work to your advantage. If the partner sees that you have confidence in yourself with this condition, they will probably be more attracted to you.