He had Henoch-Schonlein purpura (HSP) and it's still affecting his kidneys. On a steroid now to hopefully get inflammation down, but may need something stronger. My high school bestie sent a care package that included KIDNEY SLIPPERS!!! You know we're taking to the nephrologist next week!
I Heart Guts has a whole lineup of these adorable (and weird) organ plushies! They also have shirts, and obviously, slippers.