I have been told not to give anything containing aspirin. Alka seltzer does. 

My 10 year old daughter has been throwing up about once a week for around two months. She has an appointment at Children's next Tuesday 8/8/17

The closest thing that sounds like what her symptoms match is called CVS. 

I'm a wreck because I am leaving for two months on the day of her appointment to stay with her oldest sister in Hawaii. I've never not been with any of my children when they're sick, especially something possibly serious. 

She has no other symptoms. 

Any ideas?