My dad is 52 years old. He was eating something and the a small piece of plastic entered his throat. Got stuck there. He was almost choking so we voluntarily vomited. He felt sore throat afterwards and it pained for one night. Next day he felt pain at back of his neck. We don't know if it was bcos of that incident. Next day his right eye got smaller and today is 5th day and it is way smaller than normal. What can be the possible reason? There's no fever. He also isn't able to taste anything.