I had PT today and my PT did the usual ultrasound and manual therapy. He then put the E-stim pads on my leg and wrapped my leg in a large ice pack secured with velcro straps. The timer was set for 15 minutes. The E-stim was turned up higher than before and I felt the muscle cramping throughout. When they took the ice off after 15 minutes, my leg was very red and cold. The ice gel pack had been wrapped before putting it around my leg. The other PT had trouble getting the E-Stim pads off my leg and commented that they were stuck. On my way home I noticed a raised oddly shapen patch over my knee that was bright pink. It looked like the splashed shape a little kid would get if they splashed hot chocolate and burned themselves. I have a larger patch behind my leg that is also pink and raised. It's about the size of a deck of playing cards. Both raised areas are hot, hurt mildly but the one behind my leg has started stinging a bit, and turn white when pressed. There are not any blisters.The swelling feels slightly hard when pressed. I called my PT back to see if the areas were safe to ignore and they had me come back in. They were pretty shocked and said it looked kind of like an allergic reaction to the cold rather than frostbite. They thought it would go away on its own.
If it gets worse, blisters or isn't gone in a few days they said to contact my doctor. The area in front above my knee has become lighter, but the larger area behind my leg is still bright pink and the skin outlining the pink shapes is very bright white compared to the rest of my leg. Has anyone either had an allergic reaction to the cold from icing their leg or burned their leg from an ice gel pack? It was wrapped and was on for only 15 minutes. If so, how long did it take to go away and what did you have to do?