Fleas in fur and feather

We are reading the about the animal fur and feather.

From the story, i am trying to explain to him what is flea?

Me: Flea is a very tiny animal and it's normally lives in dirty and wet fur. So we have to take shower everyday and dry our body especially our hair and armpit, etc.
Little man: Why?
Me: Because it will attract flea if you no keep your hair clean and dry. Flea will sucks our body blood for its food. That is why papa and mama always ask you to dry your hair and body after taking shower.
Little man: Mama, i very scared of fleas. (sobbing)
Me: It's fine. (I trying to pacifying my little man). Mama was been had fleas in hair when in schooling age. Of course I cry because of fleas too. Then my mama, your grandma sprays some medicines on my hair to kill the fleas. After that, mama hair got no more fleas.I got fleas in hair because one of my school friend she got it and no try to get rid of it. In school, we were playing together and because fleas has wings, they can fly to other people's hair to lay egg as well.
Little man: Ok, mama, next time i will dry my hair after taking shower. (he still looks a bit worried after listen my story)

The moral of the story is: After the telling the story, he is taking very serious to clean and dry his hair and body after taking shower. Really a good moving!!!. Love my little man so much