How long after I have placed flea treatment on my dog can I bathe him?

When can I bathe my dog? I put the flea treatment on him about 48 hrs ago.
I bathed him before but the treatment is oily and makes his coat look soaked in oil. I’m scared he will spread all oils on his bed and my bed where he likes to nap.The treatment is Sentry.

Uh you should have bathed him BEFORE you put the treatment on. Depending on the shampoo you will be using, you’re more than likely going to strip the natural oils and the flea treatment.