Hopefully Melbel will chime in as she has years of experience with Lyme disease.
In the meantime, if she’s like me or my teens, she will continue to touch it and finger it at school increasing her chances of infection. Can you suggest she go to the school nurse and ask for a bit of neosporin and a bandaid? I wouldn’t have the nurse clean it though just dab the neosporin on it. If she can get the bit of dead bug in a ziploc baggie, this place will analyze it for Lyme and other diseases and let you know if she should start antibiotics: https://www.tickreport.com/?gad_sour...hoCHAgQAvD_BwE
" I object to violence because when it appears to do good, the good is only temporary; the evil it does is permanent." Mahatma Gandhi
"This is the ultimate weakness of violence: It multiplies evil and violence in the universe. It doesn't solve any problems." Martin Luther King, Jr.