Let's take a minute to talk about your medication. 

This is Xolair. It helps treat conditions in which the body makes too much of an antibody called "IgE". It can be used in conditions such as allergic asthma, chronic hives, and nasal polyps. It may have other uses, too. 

You should ask your doctor when you can expect to see an improvement in your condition. It is important to continue taking your other medicines unless your doctor says otherwise. 

Most patients tolerate this medicine well. Common side effects can include nausea, fatigue, or dizziness. You should wait until you know how this medicine affects you before doing things that require you to be alert, like driving. You could get a headache, head cold, or swelling in your sinuses. These effects are normal if they are mild, and should go away. If these or other side effects become reasons you want to stop taking Xolair, please talk to your doctor or pharmacist. 

Xolair is given as an injection under the skin by your doctor or nurse. In rare cases, a severe allergic reaction can happen after an injection, in the first hours or days. Allergic reactions need treatment right away. Your doctor and nurse will watch you closely for a set time after your dose. They will also tell you which symptoms to watch for, and how to get help. 

As with any medicine, rare but serious side effects can occur. With Xolair, this can include a fever, muscle aches, rash, and possibly certain types of cancer or infections. To help keep this medicine safe for you, your doctor will follow you closely and may order tests. You should read the Medication Guide for full information. 

For best results with Xolair, ask your doctor about the ways to track improvements in your condition.