what is this???

I just found out that I have server allergies from the rediculous high pollen in Southern California which Has never effected me before. I got an inhaler which I've ever had before and have used it a few time (not even sure if I'm using it right) Zyrtec and something else I'm not sure what. Anyways today is the first day I have taken the pills and inhaler. I took the pills at about 12:30-1ish today. It is now 10:13 and I find these weird marks on me. Is this a side effect ??? 
Edit**** I googled it and it is a server side effect of my medicine prednisone. Also labeled is depression and change in mood. I think I need to stop this immediately. This is only my first dose from today!