... feet to kill some skin fungus. The first few times it was fine, but I bought more at a farm and feed store - same name, same color in a 10% solution and far less expensive than the pharmacy wanted. The second time I used it yesterday (3-26), my feet began to itch, so I removed them after about 5 minutes and they both were very red (water NOT hot enough for burn!) and the skin was swollen up to where my ankles came out of water. It took about 1 hour for the terrible itching to go away, but tonight my feet are still bright red with swelling just around my ankle bones with no more soaking. The feet themselves seem to be swollen just a bit. WHAT happened? Was what I bought really that different from what I was given by the doctor?