Gentamicin in topical form is used to treat bacterial skin infections. Perhaps it was related to the red rash that appeared on her face.
from WebMD:
Gentamicin (Pediatric) Inj is used to treat the following:
Treatment of Staphylococcal Septicemia with More Than One Medication, Blood Infection caused by the Bacteria Enterobacter, Escherichia Coli Bacteria in the Blood, Bacterial Blood Infection caused by Pseudomonas Aeruginosa, Multiple Drug Treatment for P. Aeruginosa Bacterial Blood Infection, Blood Poisoning caused by Serratia Bacteria, Blood Poisoning caused by Proteus Bacteria, Infection of the Blood caused by Citrobacter Bacteria, Infection of the Blood caused by Klebsiella Bacteria, Bacterial Infection of Blood or Tissues affecting the Whole Body, Treatment for Staphylococcal Infections with More Than One Drug, Bacterial Meningitis due to Pseudomonas Aeruginosa, Multiple Drugs Treatment for Pseudomonas Aeruginosa Meningitis, Multiple Drug Treatment for Citrobacter Species Meningitis, Multiple Drug Treatment for Enterobacter Species Meningitis, Multiple Drug Treatment for E. Coli Meningitis, Multiple Drug Treatment for Klebsiella Species Meningitis, Multiple Drug Treatment of Proteus Species Meningitis, Multiple Drug Treatment for Serratia Species Meningitis, Bacterial Meningitis, Multiple Drug Treatment for Bacterial Meningitis, Treatment of Staphylococcal Endocarditis with More Than One Medication, Bacterial Pneumonia caused by Klebsiella, Pneumonia caused by the Bacteria Pseudomonas Aeruginosa, Treatment of Pseudomonas Aeruginosa Pneumonia with More Than One Drug, Treatment of S. Aureus Pneumonia with More Than One Drug, Pneumonia caused by E. Coli Bacteria, Pneumonia caused by Gram-Negative Bacteria, Pneumonia caused by the Bacteria Serratia, Pneumonia caused by the Bacteria Enterobacter, Pneumonia caused by Proteus Bacteria, Pneumonia due to the Bacteria Citrobacter Species, Pneumonia caused by Bacteria, Pseudomonas Aeruginosa Abdominal Cavity Lining Infection, Inflammation and Infection of the Abdomen Lining, Complicated Infection in Abdomen, Infection Within the Abdomen, Infection of the Biliary Tract caused by Pseudomonas Aeruginosa Bacteria, Infection of the Biliary Tract, Infection of Urinary Tract with Complications, Complicated Urinary Tract Infection due to P. Aeruginosa, Skin Infection, Skin Infection due to E. Coli Bacteria, Skin Infection due to Proteus Bacteria, Skin Infection due to Klebsiella Bacteria, Skin Infection due to Enterobacter Bacteria, Skin Infection due to Pseudomonas Aeruginosa Bacteria, Skin Infection due to Citrobacter Bacteria, Skin Infection due to Serratia Bacteria, Multiple Drugs for Skin Infection due to Pseudomonas Aeruginosa Bacteria, Multiple Drugs for Skin Infection due to Staphylococcus Bacteria, Treatment of Staphylococcal Joint Infection with More Than One Medication, Multiple Drug Treatment for Pseudomonas Aeruginosa Joint Infection, Joint Infection caused by Pseudomonas Aeruginosa Bacteria, Infection of a Joint, Bone Infection caused by Pseudomonas Aeruginosa, Treatment of Pseudomonas Aeruginosa Bone Infection with More Than One Drug, Infection of Bone, Infection of Lining of Brain and/or Spinal Cord of Newborn, Pneumonia in a Newborn, Blood or Tissue Infection Affecting Whole Body of Newborn, Treatment of Group B Streptococcal Sepsis with More Than One Drug, Multiple Drug Treatment for Meningitis of a Newborn, An Infection in a Burn Wound
Gentamicin (Pediatric) Inj may also be used to treat:
Intestinal Infection due to Campylobacter, Infection by Yersinia Enterocolitica, Plague, Blood Poisoning caused by Listeria Monocytogenes, Treatment of Listeria Monocytogenes Sepsis With More Than One Drug, Infection caused by Yersinia Pseudotuberculosis Bacteria, Treatment of Enterococcal Infections with Multiple Medications, Infection caused by Campylobacter Fetus, Synergy for P. Aeruginosa Infection in Cystic Fibrosis, Presumed Infection in Febrile Neutropenic Patient, Treatment of Streptococcal Endocarditis with More Than One Medication, Multiple Drug Treatment for Enterococcal Endocarditis, Multiple Drugs for Preventing Enterococcal Endocarditis, Inflamed Colon and Small Intestine with Some Tissue Death, Skin Eruption that Progresses to Ulcers and Gangrene, Pediatric Fever without a Source, Prevention of Perioperative Infection