Thanks for your question on Healthcare Magic. I can understand your concern. Sudden onset coughing fits are mostly due to acute allergic bronchitis. Allergen (dust or pollens or chemicals) exposure in susceptible individuals cause bronchoconstriction and coughing. So in my opinion, you should get done allergy testing in your daughter. This will find out possible allergens in her. Try to avoid these allergens to prevent coughing fits.. Hope I have solved your query. I will be happy to help you further. Wishing good health to your daughter. Thanks.