Can you please tell me why I get red itchy and swollen hands and feet? Some times they go numb as well and I get pins and needles in them too.

Dematitis? more info. you should see a MD to diagnose as there are many possibilities.Hand dermatitis (aka hand eczema) o/f results from a combination of causes,i.e. genetic makeup, injury (contact with irritants) & allergy.Psoriasis is possible.Primary Erythromelalgia develops spontaneously w/o any underlying disease.Secondary erythromelalgia can develop due to diseases like MS, lupus or DM.So see a dermatologist.