Allergy & Wheezing Help Please!!

Lisa • I'm 37, my OH is 41 & we have a son (12) & welcomed our baby girl on January 8th 2016.
So I'm 12 weeks 1 day and we're currently camping (ok I'm actually glamping in a trailer) and I started with allergies as soon as we arrived at the site two days ago. 
I know I'm ok to take Cetirizine or Loratodine for allergies but neither is helping my wheezy chest and at times it's making me really breathless. 
I'm planning on calling my midwife tomorrow for advice but wondered if any of you ladies had any ideas?