Woodblock printing was already a widely used technique in the Tang Dynasty. However, this kind of printing tech was expensive and time-consuming. Until the Song Dynasty (960-1279), a man named Bi Sheng (990â1051) invented movable type printing, making it quicker and easier.
Asafoetida has been used as a medicinal herb for many decades, with some people choosing to make a tea from it in order to drink it plain. Despite its pungent aroma, it is known to alleviate stomach ailments, cold symptoms, anxiety issues, chronic fatigue, yeast infections, and painful gas and flatulence.
BRAND NAME: Silvadene, SSD, SSD AF, Thermazene. DRUG CLASS AND MECHANISM: Silver sulfadiazine is a topical (applied to the skin) antimicrobial agent used to treat and prevent skin infections caused by second or third degree burns. Silver sulfadiazine kills bacteria by damaging the bacterial cell membrane.