Inflammatory corneal eye problem

I'm from Viet Nam. I just bought a 1 year old pomeranian 2 days ago. His owner transfer him to me by train, he was on the train almost 2 days. Both of his eyes was sticky ( by A yellow liquid from the eyes that I dont know how to call it in english) and his right eye has a white "cloud" covered. But not the entire eye, only few in the center of his right eye. And also his under eye lid is swelling and red. He usually closes his both eyes, but sometimes he can open both and whenever touched his right eyes, he seems like its hurt. I dont know if this is inflammatory corneal or Corneal ulcer or not. But if it is, is there anything else I can treat him instead of corneal transplant or any surgery?? Now I'm using sodium chloride 0.09% to clean his eyes everyday and use bio-gentadrop (a product from Viet Nam to cure eyes problems). Any suggestion for me? Thank you sp much!!