Oops, it doesn't look like 'psoriatic arthritis awareness day' is a national day..

Other days

ride the wind

Ride The Wind Day
bow tie

Bow Tie Day
kiss a brunette

Kiss A Brunette Day
hiv awareness

Hiv Awareness Day
camera

Camera Day
boy friend

Boy Friend Day
tell a fairytale

Tell A Fairytale Day
ponytail

Ponytail Day
azonto is acceptable

Azonto Is Acceptable Day
eat what you want

Eat What You Want Day