251. Blue Blood Poison

Moreover, because of the explosion in the furnace, fragments flew into Guyan's face, steeped in medicinal juice...

Therefore, the skin on Guyan's face that was scratched naturally got smeared with medicinal juice. Among the medicinal materials he was refining into pills, there was a herb called Spiritual Snake Grass, a poisonous herb. But the Immortal Cream that Guyan had just applied to his face, a type of ointment used for healing wounds and fading scars, also contained a medicinal material named Blue Line Grass...

Blue Line Grass itself is non-toxic and is a type of healing material. However, if Blue Line Grass encounters Spiritual Snake Grass, it becomes the most extreme poison, extremely toxic! In particular, when it touches the skin, the effect is almost like sulfuric acid...