And a follow-up to the point about antibiotics. Found this PDF document that has a very helpful summary at the end with typical antibiotic uses:
https://cardiologiamedicinaumsa.file...otics-2018.pdf
Pretty easy to get the ones in bold without prescription:
Community acquired pneumonia:
Doxycycline or
Azithromycin or Clarithromycin (
Ear infection:
Amoxicillin or Cefuroxime or Cefpodoxime or
Azithromycin
Urinary tract infection:
Ciprofloxacin or Levofloxacin
Skin/soft tissue wound infections: Cefazolin or Nafcillin or
Cephalexin or Dicloxacillin, possibly with
Doxycycline
Intra-abdominal infections: Cefazolin or Ceftriaxone or Levofloxacin or
Ciprofloxacin -Plus- Metronidazole