Aisha, the wife of President Muhammadu Buhari, has been flown abroad for medical treatment, Daily Trust reports.
She left Nigeria for Dubai, UAE over the Sallah weekend due to persistent neck pain.
Ajimobi passed away on June 25 after battling with COVID-19 complications.
Aisha went into self-isolation for 14 days after the Lagos trip.
However, the neck pain became worse and a decision was taken for her to seek medical advice abroad.
The problem began when she returned to Abuja from Lagos, where she had gone to pay a condolence visit to Florence Ajimobi, the widow of former Ogun state Governor, Abiola Ajimobi.