No you should not use tobradex as the steroid in it can make herpes keratitis much worse if you do in fact have that.
Suggest you add a antibiotic lid cleaner like Ocusoft Foam Eyelid cleaner or TheraTears SteriLid foam eyelid cleaner. Both available over the counter. Us one not need both; use at least 4 times/week when shower/bathe.
You may need to get a new opinion about the cause from an Eye MD with a specialty in cornea and external disease.
Thank you for the quick reply. I was able to see my GP this afternoon and he gave me Vigamox and oral azithromycin, as the eyelid area is now very swollen. The major inflammation came on last night. He also referred me to an opthamologist for Friday. I assume its OK to take the antibiotics until that time? Can HSV do major damage between Monday and Friday?
1. Yes okay to take 2. in some cases yes