How do I keep this blister from getting infected?

I've gone out on Tuesday in flip flops, and I got a big blister under my big toe. It had popped, and it is very painful to walk on.

I've had a bath and put anti infection cream on it, along with an anti adhesive pad and then wrapped it up in a bandage.

Did I do the correct thing? How do I keep this blister from getting infected?
How do I keep this blister from getting infected?
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