Talk to Ent Specialist on Ear Infection

My father has and off ear infection from many months. He use dexatob drops sometimes and get relieve. When he itch inside his ear with his finger his ear makes a wet noise. He was prescribed antibiotic by a doctor he used didnt completed the course. He now wants to start the course again. I have lost the prescription and we fear going to hospital because of coronavirus. Please prescribe medication. My Father is otherwise MashAllah healthy he is only on byscard 2.5 for bp issues please recommend a safe medication. I will be very thankful to you