Allergies turned in to Asthma

Patient: We just got a kitten 2 weeks ago and I found out I was allergic. I took some Claratin and then when symptoms got worse (chest tightening, trouble breating) I purchased an OTC inhaler (primatene mist). The cate was never allowed in the bedroom. After waking up coughing an unable to breathe on Sunday we returned the cat the first possible time we could which was yesterday (Tuesday). My husband cleaned our apartment throughly today while I was gone. However I still had to use my inhaler twice since returning the cat. I am wanting to know if this caused long term damage, and steps I can take to feel better, and when I should start feeling better.