Hi . My Child (2.3 Yrs)was Sleeping, Since He Is

Hi . My child (2.3 yrs)was sleeping, since he is not allowing me to clean ears, I tried to clean ears using cotton buds while he was sleeping, but by mistake I inserted bit , he started crying and blood came out.. so what to do now??is there anything serious?? He cried while and now he is sleeping.. pls reply