Don't eat greasy, fishy, spicy and other hot foods in your diet. Diet should be light. Mainly cold food, such as melon, towel gourd, bitter gourd, lotus root, pear, watermelon, grapefruit and so on. Especially eating more pears and grapefruit in the afternoon can reduce lung heat and clear fire, which is very good for you.
In daily life, go to bed early and get up early, and don't stay up late, which will make the internal fire difficult to live. Most people who get angry easily or have a sore throat are caused by staying up late.
Decocting 30g of Mulberry Leaves and 0/5g of Ophiopogon japonicus/kloc-with water, four to five times a day, can reduce lung heat and clear lung fire.
You can also drink cassia seed and chrysanthemum water (cassia seed 15g, chrysanthemum 10g) frequently every day to clear away fire, and specifically aim at the sore throat caused by lung heat of "wood fire" (liver belongs to wood in five elements, lung belongs to gold in five elements, and wood fire burns lung).
If you do as mentioned above, the sore throat will disappear and return to normal.
This is my answer to your question. Thank you.