There is minor infection. The body can often resolve this degree of infection on it's own. Apply topical bacitracin several times a day, and if the area of redness increases see a physician. Diet for the next few days and keep blood glucose levels down.
That is tiny! *jealous*
Looks fine to me, some redness is to be expected. Watch out for odour and discharge though.
Wishing you a speedy recovery.