The causes of mouth sores include infection, decreased immunity, mental factors, improper diet, malnutrition, poor oral hygiene, high heat, poor immunity, excessive mental stress, frequent staying up late, excessive fatigue, local irritation and damage, etc. The treatment of oral sores could be alleviated through medication and lifestyle improvement. Anti-inflammatory drugs could be considered for the treatment and prevention of infection. In addition, the treatment of oral sores could also be done through Chinese patent medicines such as clearing stomach fire, clearing heart fire, and purging liver fire. However, the specific cause and effect of the sores was not clear, and further research and guidance from medical experts were needed.
You can find some folk prescriptions to treat hemorrhoids and bedsores. For hemorrhoids, some commonly used folk prescriptions included Diyu Huaihua Drink, Dandelion Soup, Guixiong Yimu Drink, etc. For bedsores, commonly used folk prescriptions included Baihuang Powder, Baihong Powder, Xiongshen Flower Wine, etc. However, these folk prescriptions had not been verified by science, so it was impossible to determine their efficacy. For the treatment of hemorrhoids and bedsores, it was best to consult a doctor or a professional medical institution to obtain scientific treatment methods and suggestions.
Yes, manga can have fillers. Sometimes authors use them to flesh out characters or settings, or to give themselves more time to plan the main plot. But too many fillers can make the story drag.
The Naruto manga itself doesn't have fillers. Fillers are a common thing in anime to extend the runtime or bridge gaps in the manga's story. But the manga sticks strictly to the main plot.