###Human: What causes swollen and painful lymph node in the throat? ###Assistant: Hi. The condition you are describing can be right side lymphadenitis. It most commonly presents with infection of the throat or upper respiratory tract infection. It subsided with minimal antibiotics, salt water gargling, antihistamines, and antacids. But the swelling can be salivary gland swellings too which may present in that region. Kindly send a picture of it so that it will be useful in diagnosing and suggesting you the further treatment.