There have been many changes in the medical feild sice the early 1900's. In the early 1900's they didn't have injections or anesthesia. Most of the remedies were home made or store bought items. For example one of their remedies was alcohol, used to cure things such as toothaches.
The first sugery that a doctor used anesthesia was used to remove a tumor from the lower jaw. As the man lay there sniffing the anesthesia from a cup he suddenly became unconscious. The doctor started to remove the tumor. The people who were waiting outside anxiously heard no screams from inside; the doctor came out declaring, "It worked!" When the man awoke he decared he'd felt no pain. This was the first time that anesthesia was used during a surgery successfully.
From then on we have gathered enough information to find a way to have a surgery without putting a preson to sleep. The medical feild has come a long way from what it was in the late 1800's to the early 1900's.
Since then changes in the medical feild we are still rocketing skywards in medical knowledge. From home made remedies in the 1900's to lasik surgery in 2002.
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