I am newly taking Depakote ER 500 x 3 per day. have been on for 3 years off and on(my ignorance) but now have recently been taking the prescribe dose per day (2 months) I was out at an amusement park with my kids yesterday and now I have what appears to be hives like rashes on both my upper legs(just above the knees) spreading down to my ankles. Can anyone let mw know if it is or maybe relate to the Depakote ER?