Pregnancy After Csection!

So I had a csection almost 2 years ago. I healed perfectly and didn't have any complications. now I'm 15 weeks pregnant with my 2nd baby and noticed that my scar is getting itchy and had some red bumps on it that almost look like mosquito bites, but I know that's not what they are because they are perfectly along my scar. Did anyone have anything like this? and what can I do for it?