my legs and hands have very bad itchy. I scratch until scar everywhere. I'm in second trimester. is this common?

If too itchy, maybe let your GP knows and also let him know you are pregnant. I have hives, is annoying. Then GP prescribed me medicine, at least I can sleep better at night. My gynae is aware, also prescribe the same medicine too in case I need it. Temporarily, can use calamine solution to calm the skin down, which can buy from the counter. My GP also prescribe it to me.