How to treat a toothache at home with OTC meds?

No can do. Sorry, but most true tooth ache problems are too big to respond to otc meds, unless it is just for temporary pain relief, until you can see the dentist. Call your dentist today to determine the cause and true long term solution.
Not a treatment. Pain meds do not fix teeth. There are no home remedies or cures for rotten teeth. No magic pills or rinses or mouthwashes. Toothaches need to be treated locally by a dentist, someone who has years of experience treating these conditions. The sooner you call the sooner you will feel better. Please don't delay, the pain may soon be unbearable.
No way. You simply cannot treat a toothache with otc meds. You can only mask the pain. You need to see a dentist before it gets worse.
Tooth ache treatment. Ibuprofen or Acetaminophen might reduce the pain somewhat but the definitive treatment should be to see a dentist and treat the underlying cause. Overuse of Ibuprofen or Acetaminophen can be fatal.