Lifestyle and home remedies
A diagnosis of pneumonitis may mean that you'll have to make changes to your lifestyle to protect your health. You'll need to avoid known triggers as much as possible.
For example, if your job duties expose you to substances that irritate your lungs, talk to your doctor and supervisor at work about ways to protect yourself, such as wearing a pollen mask or personal dust respirator. If a hobby is causing the problem, you may have to find a different hobby.