hello,
yes, the bleeding might be caused due to dislodgement of blood clot (due to vigorous rinsing, spitting, lying down flat, use of a straw, etc).
some of the post extraction precautions which required to be followed are-
1. bite firmly on the gauze piece placed by the
dentist for 1hour
2. after 1 hour, remove the gauze piece and eat icecream or place ice-bag on cheek near the site of extraction for 5 minutes. repeat this procedure for two days atleast 4-5 times a day.
3. avoid gargling, use of straw,
smoking, hot and spicy food for 3 days.
4. take medications as directed.
5. start having food, until the effect of
numbness wears off.
6. take enough rest for atleast 24 hours after extraction. while lying down, elevate your head slightly.
7. drink plently of fluids during the healing phase.
8. start rinsing gently with warm salt water after 2 days.
if symptoms still persist, then visit a dentist.
take care