u/Early-Willingness-77

Hello, my outside dog had 8 puppies that are now 4 weeks old. I've never seen so many fleas. I'm at a loss it's so bad and the fleas are now getting on my indoor dogs. I tried a daw bath but they are so bad. Want can I do? I sprayed their area with kennel spray but what can I do for them or give them that will help? We have rats so we have to handle that issue as well, and that is the main source of fleas but any tips and tricks for these little guys.TIA