Has anyone had pemphigoid gestationis

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I'm 18 weeks with my second pregnancy and have been dealing with a severe rash/hives situation all over my body for the last few weeks. Last week my dermatologist took a few biopsies and the results just came in. Its something called pemphigoid gestationis. Has anyone else dealt with this? Its incredibly uncomfortable but my bigger concern is for the baby. 

A little background. My son Bear passed away as a toddler less than a year ago. This pregnancy truly saved my life as it gave me a reason to keep on living. What happened with Bear was completely unrelated to pemphigoid gestationis. Its brand new with this pregnancy. But considering the impossible loss I've suffered I am on extreme high alert with this pregnancy. The thought of anything impacting this baby in a negative way is just devastating. Right now I'm scared.