4 days is nothing! You are worrying too much, they can go without food for a month atleast so calm down your only going to stress your frog out even more so it will take even longer to settle.


These frogs stress REALLY easily so trying to hand feed and holding it will make matters much worse. You need to just leave it alone and give it time to settle in.

Please read my caresheet here:

The secrets of successfully keeping red eyed tree frogs - Reptile Forums

If you follow my advice written there your frog will settle and be healthy.