please just give me your oppinion

I'm calling the gyn Monday. But I'm here all weekend worried. But basically I was diagnosed with chlamydia today, and the medicine to fix it is dissolving powder in water. Well fun fact: I haven't been able to take liquid medicine. EVER. I throw up or gag all the time. I took most of it, but gagged and spit the last of it out. Do I need to get a new pack of the powder to try to drink again?!