I am having the worse morning sickness HELP!!

Brit
My stomach feels like it's on fire..tues I couldn't keep anything down..wed i just felt nauseous & my stomach felt like it was on fire.. The only thing to chill it was a can of cold sprite soda..today is Thursday and I am feeling the same all I'm eating is a box of froot loops..and SMELL are only making it worse for me.. What can I do to make it go away..