I have been experiencing itching,swelling,welts from what seems to be from bites. The swelling eventually goes away, and due to scratching, it's causing marks in the area. I now have a bite over my left eye, which has caused swelling. The swelling has now moved under the left eye and eye lid, i'm experiencing dizziness. The itching was excessive a couple weeks ago, but it's now intermittent. Also, I noticed swelling, tingling sensation off and on. Please advise.