Hello, Thank you for asking your query at DoctorSpring.
A torn frenulum would heal by itself in two weeks time. There is no antibiotic as such needed in your case, just maintenance of hygiene by cleaning the area regularly with water and mild soap should do. A stitch is usually done when there is excessive bleeding from the tear, but as rite now there is no bleeding you would not require a stitch.
Sometimes during the process of healing scar tissue is formed which shortens the frenulum, in such a case you would have problem during intercourse and recurrences can occur. Recurrence of the condition may need a circumcision. A circumcision will alleviate your problems in such a condition.
I suggest you wait for 2 weeks time, if it doesn't resolve then visit your doctor again. The treatment plan would be to go for circumcision. I also advise you to use lubricants during intercourse whether you are using a condom or not.
Hope this helps.
Please feel free to ask follow-up questions