neosporin is good, but let me tell you what I call the MIRACLE cure.........Betadine. I get A LOT of bites and scratches from work, and soaking the area in warm betadine/water solution is the thing that has always helped the most. The you can also but more betadine directly on the area and bandage it. Works like a charm.
Don't feel too bad, all this terrible stuff will be in the past real soon. It always seems to gang up on you all at once, but that is the price you pay for any streak of good luck you had in the past. Hang in there.