Suggest Treatment For Intermittent Swelling In The Feet And Itchy, Swollen Rashes On The Arms

Hello, my feet have been swollen on and off now for three days, I now have my hands swelling and itchy, and a rash going up my arms. I am wearing socks for the swelling in my feet, and the rash does not seem to be progressing, but my head is also itchy.