It's a muscle relaxant. There are better drugs for pain relief.

A pain that rhymes with stake would be an ache.

aciloc can give you relief from heart burn,stomach ache, hyperacidity, some type of tension headaches, ulcer and is sometimes also tried for persistent hiccups

First, severe toothache requires a trip to the dentist. But, if you can't get to the dentist immediately, I have found that 800 mg of ibuprofen will stop the pain. For topical relief a product like Anbesol gives some temporary relief by numbing the area a bit.

The word ache has no homophones in the English language.