I just admitted a Eastern grey squirrel 134 grams, about 5-6 weeks old bushy tail, from certain death in the road, hes malnourished and he must have been alone for awhile he has bruising on his pee pee. He has horrible diarrhea probably from eating bad stuff outside. I haven’t even started him on formula yet, whats the ideal course of action hear, whats preferred to treat diarrhea, pedialyte, probiotics? Anything else to help! Want to get him started right! Thank you!!