If it really is a gecko, they aren't poisonous. I'd observe the toddler for a day or so and not worry too much about this. If they show any adverse reactions -- vomiting, hives, truoble breathing, etc., I'd call a doctor. However I'd be very surprised if this causes any real problems.
it eats and eats
A leopard gecko eats mealworms.
a gecko
Insects
If a toddler eats baking powder, you should phone your doctor, a clinic, or a poison control center immediately.
The beaded gecko of the colenyx family are insectivores eating live prey.
a black rat
A gecko's niche is probably that it eats mosquitoes to help other animals from them.
it eats fish and squid
A orange spotted gecko is a omnivore. It eats plants and meat.
Cats, snakes, dogs everything that eats meat
Geckos are well important, man cos we's eats them up lad!