Get violent bouts of cough accompanied with choking, toungue turns blue and have difficulty in breathing. It is going on for last 2 weeks, consulted general physician and is on antibiotics without any improvement. The choking and breathlessness sometimes is accompanied by a blackout for 10-15 seconds and she can't remember that duration. There were no known allergies before. She has adopted 4 stray dogs and spend a lots of time with those.