What happens next in this paragraph?

How to shrink adenoids
Take your child to the doctor for an exam.
Your child's pediatrician may be able to determine an underlying reason for your child's enlarged adenoids and suggest a treatment. Enlarged adenoids can have many causes, but common ones include :
A viral infection, like a flu or cold.
Options:
- An allergic reaction to food or something in the air. A bacterial infection in the throat or upper respiratory system..
- Trauma to the body, like an injury. Illness, like diabetes, heart failure, stroke, or heart disease..
- Abnormalities in the skin, such as small yellow scabs. An infection or an inflammatory illness, like a cold..
- Unusual change in behavior that is accompanied by fatigue, hunger, or depression. A bad habit, like a chronic problem..
An allergic reaction to food or something in the air. A bacterial infection in the throat or upper respiratory system.