Ugh...morning sickness. Need help- advice please?

For the past week or so, I've had "morning" sickness 24/7. (I'm eight weeks pregnant). I've tried crackers in the morning, that doesn't help. Even the thought of food makes me feel queasy. What can I do to help this? When can I expect the sickness to ease off? I feel horrible, but I'm trying to remind myself that this is part of becoming mommy. Help please!!!