Two-year old Mya Watson used to lie awake at night, terrified of the monsters lurking under her bed and in her closet.

But lately, thanks to a special monster-fighting weapon, the little girl has been sleeping soundly.

Like other kids her age, Mya's parents say she used to stay up late into the night, imagining a monster would creep into her room if she fell asleep.

"She was always saying there were monsters in her room, there was something here, something there," Mya's father, Aaron Watson told CTV Vancouver Island.

The fear was so bad that it started to cut into Mya's sleep.

"She didn't want to go to bed, she wanted somebody to snuggle with her," Mya's mother, Amber Dixon, said. "It really started affecting her sleep."

Mya's parents tried to tell their daughter that the monsters weren't dangerous, but the two-year-old was unconvinced.

"We've been trying to tell her for a while that they're trying to be her friends and not to worry," Aaron Watson said.

When their reassurances failed to sway Mya, her parents reached out to a local pharmacy for a creative solution.

They bought a bottle of "monster spray," a powerful monster-fighting potion made of water and a little bit of soothing lavender.

The pharmacy slapped a label on the bottle with specific instructions for how to use the spray safely.

"Spray around bedroom at night before bedtime," it reads. "Repeat if needed."

The bottle also features warning labels, reading "Shake well," and "May cause drowsiness."

According to Mya's father, the spray has effectively eliminated the monsters in Mya's room, helping her rest easy each evening.

Now, he said, Mya will alert him to a monster's presence, then take aim and spray the bottle in the creature's direction.

"(She'll get) her bottle of monster spray and (go) 'Choo, choo, choo!' " Aaron Watson said, imitating the sound of the spray bottle firing. "Then she goes, 'Don't worry, Daddy. The monster is gone.' "

And according to the pharmacy, Mya isn't the only monster-fighter in town.

A representative said they've stocked up on bottles of monster spray, so they'll have it on hand if customers come in and ask for the product.

For Mya and her family, that's quite often.

The two-year old's father says he's become a regular at the pharmacy, stopping by frequently to stock up on the spray.

"We've had 20 or 30 refills by now," he said.

With files from CTV Vancouver Island