After 9days of wisdom teeth extraction, it bled heavily last night, i went to see the doc, he says there is no infection or dry socket since no pain.?

Dry socket: As you describe your symptoms you do not have a dry socket. With a dry socket you loose the healing blood clot and have intense pain. Follow the instructions give by your dentist for the best healing.

Not OK: Tooth extraction is a surgical procedure and is not completely risk-free. Pain, swelling, bad breath and infection following surgery is usually at its worst 24 – 48 hours after surgery. After that it should subside more and more every day and after 7 days stop. See your dentist or an oral surgeon for post-op appointment and treatment. Take care.