I think since you have a sore throat , a pain killer is required to alleviate your symptoms... also a syrup gaviscon can be added which will form a protective coating on the ulcer and protect it from continuous insult while taking food.
Next Steps
Since you have the symptoms for 10 months and not reducing with steroids .. I suggest you to go for a biopsy of the ulcer and see the underlying cause
Health Tips
Please avoid tobacco smoking / chewing in any form and spicy food