What penicillin can be used for STDs?

Answer 1

It can't hurt... Unless the STD is fungal, like a yeast infection, or tinea cruris "jock itch".

Antibiotics (Penicillin) kill bacteria--- bacteria kills fungi = Much worse than you were before.

Penicillin is only effective on bacterial STDs, which are the most common.

Viral STDs are the one kind you don't want! NOTHING cures them. Some you can treat the symptoms and eventually the virus will leave your body.. but some kill you.

Parasites- (crabs and scabies) are cured with Permethrin, basically it's an insecticide.

Protozoal- (trichomoniasis) is cured with Metronidazole, it's an antibiotic... but Penicillin probably wont work because trichomonissis is an anaerobic bacteria.

So to break it down

If you don't know what kind of STD you have then I would suggest taking the Penicillin. If it gets better great, no needs to know what kind it was. If it gets worse, then its fungal and can be cured with anti-fungal meds. If there is no change it could be viral, parasitic, or protozal... and pray its not viral.
It is highly unlikely that you will be able to obtain a prescription for Penicillin from a physician if you do not have an established, legitimate medical reason for needing it. If you have reason to believe that you have unknowingly contracted a sexually transmitted disease, immediately request a medical examination. If it is determined that you do indeed have an STD and need Penicillin, then and only then should you take it.

Further, Penicillin is known to cause a number of adverse side effects, such as: rashes, nausea, vomiting, diarrhea, and neurotoxicity. It isn't worth the risk unless you are certain you need it.

Answer 2

The best and most correct answer is: See a doctor. They will correctly diagnose which STD you have (if it is an STD), and prescribe the correct treatment.