Relating to previous posts, looking at wounds from a bug bite, a MRSA infection, or a hicky can all look very similar, and unless the latter came from your significant other, all can prove dangerous to your health. :)
In many cases, showing a bug bite to a physician will cause them to look at the wound, ask some background information, and then send you home to see how if the wound gets worse. If the wound was caused by a bite, and you do not have the bug that bit you to show the doctor, treatment is not generally an immediate fix.
Asking on these forums from other hikers who are familiar with the area wherein which you were bit can help you better determine what kind of recovery process you are looking at.
In most cases, keep the wound clean, and apply an antibiotic emollient (like Neosporin or Bacitracin) that will keep the wound clean and moist. For me, I like to cover the wound with a clean dressing for the first few days, but some prefer to leave the wound open to air. Generally, you want the area to stay moist so that it will aid in tissue repair, but not too moist.
Always try to keep the bug that bit you, and document where it occurred and approximately what time, and date.