Allergies-frustrated

I am so irritated. I came up with a vaginal bacterial infection and bc I'm allergic to one of the two medications that can be used for it, I am having to pay out the rearend for the one I'm not allergic to. The one I got today by itself was $36 so when I called the pharmacy to ask them why I only got one applicator, not realizing until I used it that I needed 7, they said the dr didn't write the script right and that I actually need 6 more and it'll cost me over $200 for the rest of them. Right now I am a single parent and I don't really feel like my SO has any financial responsibility for me (we don't live together) so I feel bad asking him for stuff. Especially when it cost that much money. Idk what I'm going to do. This day has just gotten worse and worse.