Scratching my feet when I was in a river (3)

Description: I was in the river that is close to my house trying to cool off a little and spend a different afternoon but when i enter the water and sit down to enjoy it, my feet and legs start to itch and i can't figure out why i'm so itchy so i start scratching myself but investigating that it bit me but with every second that passed the itching increased so there came a point where i stopped searching and i simply started scratching my feet, legs, calves among others to the point of pouring water on myself. on the body to see if this would reduce the itching