Hello, ans welcome to Just Answer. It does sound like Lovely does has a little bit of a mild mastitis. My suggestion would be to infuse the effected teat with a commercial mastitis tube, such as Today, after milking the quarter out.
I would also recommend starting her on Banamine at a dose of 1cc in the muscle once daily for 3 days, and Penicillin at a dose of 5cc once daily.
Thanks Larsondvm..... we are complete novices at administering medications so we might contact the folks we acquired Lovely from unless you think we should go to our vet? I imagine we could purchase these items from our local feed store. Any advice?