Thanks for all your replies. Crocheted some last night with no problems. I found someone online saying that they were rubbing the back of their arms on their shirt in the chest area, if you know what I mean, while they were crocheting without realizing what they were doing. This caused them to break out because of something in the laundry detergent and the constant contact with their arm rubbing on their shirt gave them a bad rash. While I was crocheting I realized that depending on how I am sitting, I tend to rub my forearms on my 'chest area' while crocheting too. I had to consciously make an effort not to do this. I crocheted for about 1 1/2 hours without breaking out!! So I'm not 100% convinced this is the cause but I will keep paying attention to my arm position while I'm crocheting!
I recently started a Crochet Along and bought some Caron Simply Soft from my local Wal-mart. This yarn is 100% Acrylic. I spent several hours last week crocheting and a welty rash started developing on my forearms. I did start a new antibiotic and allergy medicine that same day and thought maybe the reaction was to that. I am on a new antibiotic that I started several days ago with no problems. Last night I was crocheting for several hours again and broke out in the same rash and my face looks a little swollen this morning too. I crocheted with RHSS yarn that was 100% acrylic a few weeks ago with no problems. So I'm wondering if it could be the dye? I've also read about starches manufacturers use on yarn...could it be that? Would washing the yarn skein first help before I just give it all away? Anyone have experience with an Allergic reaction to a brand of yarn for no apparent reason? I know some people are allergic to wool but this is not wool. Thanks for any help or advice!