What can I use for elbow pain if I don't have a doctor?

NSAIDs. Non-steroidal anti-inflammatory drugs are the mainstay of stay-at-home-therapy. These include Aspirin (650-975 mg four times a day with food), Ibuprofen (400-600 mg every 4-6 hours with food), Naproxen (220-440 mg twice a day with food). Rest and heat can help. If it's not improving, consultation with your doctor will take it to the next level.