Where to learn first aid skills after 200?

Go to the NPC first aid in the main city 150, and he will teach you silk bandages, but the problem at this time is that you can't raise the upper limit. At this time, you can go to the auction house to buy three books: Intermediate First Aid Textbook-Bandage Binding Body, Manual: Thick Silk Bandage and Manual: Magic Bandage (by the way, these three books can be bought at LM players in Lan Highland-Riptide Castle, BL players in dustwallow marsh,-Jueqiang Village). The upper limit of bandage binding body is raised to 225. Now, rush to 65433 with a silk bandage. LM players go to dustwallow marsh-Celamo, BL players go to Alahi Heights-Falling Hammer Town to do tasks, and the task reward will increase your first aid limit to 300. Next, if I remember correctly, you go to 240 with a magic bandage and then go to the NPC mentioned just now. He will kick you with a thick magic bandage. Then rush to 260 to find him, teach you rune cloth bandages, and then rush to 290 to learn thick rune cloth from him. After 300, I will go to the auction house to buy three books (by the way, these three books are played by LM players in the Hellfire Peninsula-Taha Temple.