I was bien two weeks ago by an unknown insect. The three bites are on my inner side of my upper arm. These itched constantly for several days and the skin all around became inflamed. I used cortisone 10 and other salves and home remedies for itching but nothing helped until about the third day I used Lanocin and this does relieve the itching for a few hours. The bites are still evident and still itch terribly although the Lanocain helps. The bites are still evident two weeks after I was bitten.