Ear infection is quite a nebulous term as it doesn.t indicate whether it is outer ear or middle ear, although from your treatment, it does sound outer ear ( otitis externa). Pain and itching with no discharge would suggest otitis externa, whereas discharge with little or no pain would suggest a middle ear infection in an adult.
Assuming that it is an outer ear infection then continue the drops and take Ibuprofen 600mgms for the pain.
Keep me informed as I am interested.