A week ago on floor dental office, felt a bite or sting. saw three bumps with punctures. Sores on neck . Sores got larger, with some red around them, glands swelled up.. Took zpack given to me by Dentist incase of infection. glands are down, now I have 3 flatish sores, red black. not painful, but not healing fast. Put topical antibiotic on it, alcohol, aloa, anti itch cream incase I got poison ivy in woods