Homeopathic ways to raise blood pressure

I found out that the reason I’m fainting is because my blood pressure which normally is at the lower end of normal drops and causes me to faint. I’ve tried researching ways to raise my blood pressure without meds but couldn’t find anything. The one med I was prescribed made me insanely nauseous and was not a good thing. Everything I could find for homeopathic blood pressure support was to lower the blood pressure. Anyone have any ideas? My doctor did put me on a steroid to do the job which I think is working? Idk. Too early to tell.

Edit: it’s POTS/dysautonomia issues, so other than salt. That’s the main treatment.