Police were called at 8.19pm on Friday, 27 August to reports of an altercation on a bus on Lee High Road, SE13.
“Emergency services attended and were told by the victim that a substance had been thrown at her. She was treated at the scene before being taken to a south London hospital as a precaution.
“The substance is not believed to be noxious.
“There have been no arrests and enquiries continue.”