Hi, You are taking all the necessary medications to relieve the symptoms. I would also suggest to keep a good oral hygiene with repeated gar gar (water and salt); oral spray or candies; drink plenty of water. With regards to diet, water is what I mostly recommend my patients and usually boiled village chicken soup to gain energy together with fruits (pomegranate, citrus,etc) and vegetables. Avoid alcohol, smoking, fast-foods or processed ones. Take more rest and breathe fresh air while walking or doing light exercises. Hope this helped!