Do you know the difference between hairballs and asthma in cats?
1. The reason why cats vomit hairballs is that hairballs accumulate in the cat's body, causing gastrointestinal discomfort and triggering vomiting.
2. Asthma in cats is caused by an allergic reaction to specific allergens, which, when inhaled, cause inflammation of the bronchi. 
3. Hairballs can be relieved by using hairball remedy and cat grass, while asthma cannot be cured, but its symptoms can only be relieved through treatment.
4. The symptoms of hairballs include vomiting brown contents containing hairballs, while the symptoms of asthma include paroxysmal coughing, neck stretching, wheezing and stridor, which may be accompanied by vomiting in severe cases.
5. Cats with severe asthma will experience difficulty breathing during an attack, and they will be seen breathing through their mouths.