Welcome to Wikipedia. Everyone is welcome to contribute constructively to the encyclopedia. However, the username you have chosen (NationalPsoriasisFoundation) seems to imply that you are editing on behalf of a group, company or website.
There are two issues with this:
Regardless of whether you change your name or create a new account, you are not exempted from the guidelines concerning editing where you have a conflict of interest. For information on how to contribute to Wikipedia when you have a conflict of interest, please see our frequently asked questions for organizations. The article in question is Talk:Psoriatic arthritis. Thank you. | Uncle Milty | talk | 00:22, 21 April 2011 (UTC)