Hi thanks for your question.
If pain is associated with hearing loss
,then chances are there that he has ruptured his ear drum.If there is no hearing loss then chances are that he has hurted his ear canal
.Precautions before physician consultations are;Keep his ear absolutely dry.Don't put any medication into the ear and of course no further ear pricking .For pain paracetamol
syrup can be given to him.
Hope this answers your question.