Allergies From Mold?

I get allergic reactions like itchy throat, coughing, sneezing, etc. when I go to my sisters house. I always thought it was from her black lab, but she recently did a mold test in her basement and it tested positive for mold. I did always smell a musty odor coming from there. Also my husband gets all stuffy and can't breathe when we go there. My question is- is my allergy coming from her dog or the mold? How can I Tell? By the way I do have allergies to cats but not to my own two dogs or any others. And her family who has no known allergies don't seem to be affected (if its the mold.) Any Answers would be appreciated. As i am concerned about this mold situation.

I don't think you can be sure until you isolate one possible cause and you can rule one or the other out. But its even possible that you're allergic to both.
I didn't realize I had a slight allergy to dogs until I started working at a vet clinic. I'd never had a reaction to a dog before, but I realized I'm only allergic to certain TYPES of dogs. Are your dogs a different breed than hers?
My sister has had severe allergies in the past few years. She is allergic to a lot of things, but recently they discovered mold in one of their walls from the air conditioner... I think that may have been a big contributor.
Not everyone will have an obvious reaction from the mold, but it is still dangerous to everyone's health. I hope she can get it under control.

Do your dogs live inside at your house? Does your sisters? If your dogs stay outside and your sisters stays inside then yes it could be the dogs, but doubtful if you have any pets including the cats inside the house. Usually if someone is allergic to dogs it is usually pet dander in general that they are allergic to.

I am highly allergic to mold and all the symptoms you have mentioned are involved. Contact your doctor. They can ask you all the right questions and advise you on what to do for your situation.