Hello and welcome to Healthcare Magic. Thanks for your query.
You seemed to have inadvertently caused an injury
to either the ear canal
or the tympanic membrane (ear drum). Now, you have mentioned that there was a lot of blood in the swab and so, we can never be sure how severe the damage has been. Moreover, if there has been a tear or damage to the tympanic membrane, then this may be serious.
It is safe to get your ear examined in order to determine the nature and extent of the damage. So, to be on the safer side, I would suggest that you see a doctor for an examination.
Wish you all the best.
Dr. Jonas Sundarakumar