first pregnancy that I've ever had morning sickness need advice !

Amy
This is my first pregnancy I've had where I have constant nausea and it sucks especially at work or when I have to go grocery shopping.  Is there anything I can take besides food to help? I hear a lot of people say crackers or saltines but my problem is the nausea is so bad I refuse to eat crackers cuz I'm afraid of getting or feeling sicker :( any suggestions???