I found a rana erythraea frog in my little sister's plant pots and it was thre sitting i tried to touch it with a net , it wouldnt budge so he jumped and felt into my dad's fish pond and i caught him and place him in a container i added water and a basking dock and while looking at it we noticed a red blister thing on between the frog's ankles and i though that i should cure it before it dies!! pls help! those frogs are great addition to our garden and gives us some tadpoles rarely!! pls theyre the only frogs there (like 4-5)!! i dont want to loose one how do i cure it!!i promise to release after hes been cured! pls people help me! What medicine should i apply? all advice will BE followed.... i will post pictures later when i go home... pls help me!