Big bump on my tree frogs' leg

[andre87]

Hi everyone!

I want to know if some of you have seen this.

This red eyed tree frog has a big hard bump in one of his legs. It appears suddenly. As you can see the skin bleeds (I guess because of the contact with the surface), and it doesn't sound to me as an absess (I don't know how hard can an absess may feel, but this feels like bone to me). I already put some antibiotic cream on the bump, but I don't think this can work.

So, any help or suggestion may be very helpful to me, thanks!