Yes you can! As long as you have a valid subscription with us you will be covered to use our music on Facebook and Instagram, just make sure to include the links in your subscription.
If you wish to get your Facebook and Instagram page covered by your subscription, you can add the link to your page directly into your Epidemic Sound account. Bear in mind you can only license one Facebook and Instagram page per subscription.
Go here if you already have a subscription and want to know how to connect your Facebook page to it. If you want to create a new subscription and add your Facebook page to it at the same time, read about how to do this here.
If you want to connect your Instagram page to your current subscription, read about how to do this here.