I found a little baby out in the rain, he was very cold warmed him up noticed a clicking when breathing (pnemonia) need to know how much amoxicillin to give. Nobody is open to help. I have 500mg capsules for humans. He has no fur yet but skin is getting darker. Weighs 24gm. Please help. I do have Pedialyte and dog milk replacement on hand with a 1cc syringe.