Have the doctors said that there is a possibility of her having asthma and allergies. From the time my daughter was 10 weeks old she had respiratory problems. She had bronchitis almost once a month until the age of 2 and pneumonia twice. My daughter has seasonal allergies which would cause a sinus infection and lead to ear infections,bronchitis and the 2 times we were not quick enough, pneumonia and this was over night. My daughter has had her adenoids and tonsils removed. The adenoids being removed has been the biggest help with the sinuses and the tonsilectomy has helped with the tonsilitis ( she had this 3 times in less than 6 months ). The only help I an give you is keep your daughter AWAY from smokers and to try to find the culprit which can be an allergen, pollination, ragweed, cats, dogs, any number of things. My daughter, who is 3, is on Singulair and Zyrtec together and this has been a life saver.