I have found a baby squirrel outside and weak all by himself on May 15th. No tree nearby. He was flea infested. I brought him home and got the flea off with some tape. I bought the Esbilac formula (1 part Esbilac and 2 parts water) and have been feeding him this for a bit now with a syringe. I have 2 problems... One is that I left the Esbilac powder out for a few days after opening it. It is okay to use? Or should I buy a whole new can? I didn't know to refrigerate after opening a powder.. I just put it in the refrigerator last night. Now...the second problem is... I think the Esbilac is not digesting. He did not poop unless I have him a little bit of warm apple juice mixed with pedialyte. Today is May 20th and he has not pooped at all since yesterday morning. I even gave him some apple juice this morning and he hasn't pooped. What should I do? Will yogurt or whipping cream help? If so, what brand/kind? The baby squirrel looks 4/5 weeks old. He just opened his eyes today as well and is very active and energetic. He looks very healthy even though he has not pooped. His belly is round, tiny bloat since he hasn't gone. Really not sure what to do. Do I skip feedings? I have been giving him warm water more often to hopefully help.