Hi, I am 21 weeks pregnant and have developed a skin rash associated with pregancy. It causes, hive like rashes, that are very itchy, red , and hive like. They are spread in various parts of my body. The doctor confirmed it is alright if I take Benadryl, but wanted to know if it is alright to take claritan as well. Should I take it once a day? In the morning? Please advise