Mine started after I would have a nightly hot bath
, every time I got out of the bath
my legs were bright pink from the heat of the water, but it didn't bother me at the time. Then suddenly one day I went to bed after the bath and my legs were tingling and prickling like mad, it even made my lips tingle. I then moved to having showers as this happened everytime I had a bath, but it happens with showers too. Now anytime I have a bath, or shower, my legs tingle for days after.