Hi there ~
I understand your concerns.
1. The Rocephin is an antibiotic that will treat your infection but the burning sensation and swelling needs to be treated with analgesics like aleev or motrin, although with the antibiotics starting to work you will also have a rapid decrease in the buring issues and pink eye. I am assuming that you have also been given eye drops by the doctor.
2. The burning sensation can be reduced by drinking plenty of fluids like water and also using antihistaminics, that are available over the counter.
3. There is no concern for
blindness as long as you are being treated for the infection.
4. Yes you can have a
throat infection i.e.
pharyngitis if you have had oral sex or cunnilingus with your partner.
5. I would not be too concerned about
antibiotic resistance at this point in time, and advise you to keep taking the
oral antibiotics as recommended by the doctor. If you are healthy, I assure you that you will fend off the infection. I hope you have got all the screening tests for STDs done.
I hope this helps. Take care and have a lovely day!