Ms McGovern said in the days after the bombing, there were visits to the hospital from Prince Charles, Northern Ireland Secretary Mo Mowlam and RUC chief constable Ronnie Flanagan.
The Omagh Bombing Inquiry heard statements on Wednesday from several of those impacted by the attack on the final day of commemorative hearings at the Strule Arts Centre in the Co Tyrone town.
Her statement said she was trained in first aid so went to the scene of the explosion to see if she could help the injured.
Ms Cullen said she placed fire extinguishers next to dead bodies on the street so they could be more easily identified.
She said: “I saw some police officers who had large cuts on their backs, so I used some children’s nappies that were laying on the ground to press against them to stop the bleeding.”.
