Context: For sometime now , I have been limiting my intake of cow 's milk products - any kind of dairy from Milk , cheese , ice cream , yogurt , etc . But I am getting ahead of myself , let me tell you why . Years and years ( from about 10 years old to 22 ) I suffered from chronic sinus infections , and was constantly clearing my throat after a meal . Eventually , my acid reflux got so bad I had to have surgery and an ENT removed some of the tissue lining my throat and nose due to the extensive damage from stomach acid .

Question: What may be the reason for them cutting out dairy ?
Options:
0. None of the above choices .
1. It causes issues with stomach acid .
2. It causes issues with their skin .
3. It causes issues with their breathing .
Answer: 1