I am really sorry to hear about these symptoms! Nausea is very common in women when they are just starting a new birth control
pill. Typically, these symptoms will go away after a week or so, and they tend not to come back once you have gotten used to the pill.
However, I do recommend that you go back to see your primary care doctor
or your OB GYN doctor, whichever prescribed this pill for you. Sometimes it is necessary to switch to a different type of birth control pill. There are many different formulations of birth control pills, and some of these are less likely to cause nausea than others. It would be relatively simple to switch to a different brand.
It is probably not a good ideas to 'treat' the nausea, because if it is a side effect of the medication you are taking, then the best strategy is to change the medication rather than covering up the side effects.
Also, if you find that you have a lot of nausea with multiple forms of birth control pills, then you may want to talk to your doctor about alternative forms of birth control, of which there are many!