A Western Australian woman has survived a deadly snake's bite on her foot that caused her face to swell up and bleed.

Janice Taylor was walking along a path outside the Safety Bay Bowling Club last week when she felt a sharp pain in her foot.

The mother dismissed it as perhaps a spider bite, until she got home and realised that it was far more serious.

"My head was spinning, my brain was spinning, I couldn't move my legs," she told Nine News Perth.

After she collapsed head-first she was taken to Rockingham General Hospital, where doctors initially suspected she was suffering heart problems.

It was only when her face began to bleed as her blood thinned that doctors realised she had probably been bitten by a highly venomous snake.

The mother thought she was going to die.

"At 5am they (doctors) said to me do you want us to call your kids because we don't know if you'll be talking to them in 20 minutes," she said.

It is believed that Ms Taylor was bitten by a brown snake, considered the second most venomous in the world.

Against the odds she pulled through and Australian Medical Association WA president Michael Gannon said Ms Taylor was "very lucky to survive".