Otocin-o ear drops usually contain an anti biotic, an anti inflammatory drug and a corticosteroid. This are all made to act locally. This drug is very effective for very local and simple inflammatory reactions. In your case, the situation would be different. The drug would not be very effective i combating the cause of this pain, or the pain might be a referred pain
It would therefore be worthwhile visiting your ENT specialist
for another proper consultation and reevaluation. This could lead to an addition of a more potent drug or prescription of a different one depending on the case findings during the clinical examination. Its not good to take drugs at random, especially when very sensitive structures like the ear are involved. Please, could you see your Dr would be a reasonable option.
Thanks and best regards,