hello and welcome to HCM,
Please immediately stop putting the drops.
In all probability you could have injured the drum or even the ear canal
and since that is an open wound, when you put the drops there is severe pain
. Furthermore the treatment of any such injury
is actually keeping the canal and drum dry and giving oral medications.
Consult an ENT who can examine the extent of injury
Keep the ear dry and clean
Avoid head bath for the next two weeks
Dr Sriram Nathan