Let's take a minute to talk about your medication. This is budesonide suspension, and you should use it as directed by your doctor. When a dose is due, you will put it into a jet nebulizer to create a mist. Then, you will breathe the mist into your lungs. It's best to breathe calmly, deeply and evenly. Be careful not to get the mist in your eyes, and don't mix it with other medicines in the nebulizer. After your dose, rinse your mouth with water, and spit. This reduces the chance of getting an infection in your mouth or throat. A health care professional should train you on using the nebulizer. But if you still have questions, ask your pharmacist. With consistent use, budesonide can help you control your asthma and breathe better. But, it can't be used for sudden shortness of breath. It's usually well-tolerated. Still, some side effects can occur, like a cough, runny nose, nosebleed or infections like the common cold. It could also cause an upset stomach, diarrhea or loss of appetite. These effects are normal if they are mild and should go away. But, if these or other side effects become reasons you want to stop taking it, please talk with your doctor or pharmacist. You should call your doctor right away if you ever feel your breathing is worse, or if you notice any unusual changes to your body. This medicine is sensitive to light, so keep the unused vials in the foil overwrap. For best results, plan ahead for refills, and read the 'Patient Information' leaflet for more information.