This type of frenulum injury
is common after forceful sex.
Continue applying Neosporin
powder or cream for about 5-7 days.
Within few days it will be healed completely and during this time avoid intercourse.
Afterwards avoid forceful intercourse or apply some lubricant jelly for easy penetration.
At present if swelling or pain is there at the site, then go for short antibiotic medicine course.
Ok and bye.