Suggest Treatment For Painful Lump Under The Skin After Insect Bite

i was out visiting a park yesterday in raleigh nc. something bit me on the neck. no big deal, i didn't see it. i feel it now. None the less, it is burning, elongated, and painful. I now have a knot the size of a small gum ball behind the ear on the side of the bite. I have several sore lumps and sore surrounding tissue developing under the skin at my hair line on the same side and now i have noticed a painful lump forming under the skin near my jaw joint. it is getting larger and causing a throbbing pain when i hold my head down. i also have the burning sensation on the bite area and sore neck where the lumps are at the hair line. what should i so? I have been rubbing the bite area with alcohol swaps today. The bite area is very sensitive to touch.