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

This is Avastin. The purpose of this medicine is to block the blood vessels that feed a tumor. This can starve the tumor and stop it from growing. Avastin is often used with chemotherapy to help treat many types of cancer. It is given into a vein as an infusion, or 'IV'. 

Side effects can happen, like a headache, backache, runny nose, changes in the way food tastes, and watery eyes. It can also cause a minor bleed of the nose or rectum, or changes to the skin, like dryness or flaking. These effects are normal if they are mild. Still, you should let your doctor know if they occur. 

Avastin can cause high blood pressure. You should ask how often to check your blood pressure, and when to report high readings. 

As with any medicine, rare but more serious side effects can occur. With Avastin these can include unusual bleeding, heart attack, or stroke. These would require emergency help. It could also cause holes or tears in your stomach or intestines. You should call your doctor right away if you have constipation or abdominal pain which is severe or does not go away. Also get help right away if you have high fever, shivers, or vomiting. Avastin can make it hard for your body to heal wounds, such as after surgery. To help keep this medicine safe for you, your doctor will follow you closely. 

Women must not become pregnant during treatment and for at least 6 months after the last dose. After this time, women may be unable to become pregnant. If this worries you, you should discuss options with your doctor. 

For best results with Avastin, ask your doctor about helpful support resources that are available.