Chronic sore throat

Hi, I've had a chronic sore throat since I gave birth one month ago. It feels like there is a lump at the top of my throat, or something stuck... a bit worse when swallowing sometimes but not much worse - other times, swallowing liquids or food actually helps, but only during the swallow... then my throat hurts again. Definitely worse swallowing with an empty throat. It is also worse in the evening and whenever I awaken. I experienced this same symptom for the first 4 months of my pregnancy, but then it faded and I didn't really think about it again until it got worse after the baby was born. For awhile I thought it was from the dry winter air... it seems to be worse dry rooms. The pain is hard to describe but can usually a raw, scratchy feeling (of course accompanied by the lump-in-the-throat feeling.) My lymph nodes are slightly swollen, but not too bad. When I press inward at the top of my neck, it makes it hurt worse also. I am an anxious person who hates hospitals and doctors, and have much success with homeopathy in the past - so I am eager to hear your suggestions for how I might treat this naturally! :) Thanks.