Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Pain behind the ear during swallowing indicates a clinical condition known as TMJ disorder (temporomandibular disorder). It is due dysfunction or spasm of your jaw joint. As a first line treatment you can try analgesics and muscle relaxants like Diclofenac and Baclofen combination. Stretching exercises and physiotherapy also provide symptomatic relief. If symptoms persist better to consult an ENT specialist and get evaluated. Wishing you good health.