Burn on Paw: Infection?

My cat Butter burned his paws on the stove a few weeks ago.  He had a small blister on two of the two pads and the others just were a bit red.  We soaked them in water after the burn and he seemed to be healing up fine. No pain or infection it seemed like.  The blisters popped a while ago and now the dead skin is peeling off. But on one of his toes the pad is now a deep purple color and looks like a blood blister would look.  It doesn't seem to be hot and is still not bothering him but I am wondering if I should be concerned.

[Jade59]

Hello and welcome...oh boy, this could of been worse.  I would give your vet a call on this one.  It shouldn't be any trouble to answer this question over the phone since you will either be told not to worry, or come in.  

Keep us posted...