Sunday I had very red eye with puss. Got a shot of rocephin and dexamethas and was prescribed amoxicillin 875mg/125. The eye pressure subsided and I felt better. At 2 o clock this morning I woke up with intense pain all over my body. Could not sleep. I had a massage today and was told I had raised whelps where I got the dexamethas shot. Raised looking bites on my right arm. Feel really wiped out. Not depressed and actually not in as much pain. Can sinus poison your whole body or is this a reaction or perhaps a bite? I am on armoutrthyroid.