The victim of a horrific medical blunder may have to wait up to two years before an investigation into the incident is complete.
The 21-year-old suffered severe burns after an acid used for her colposcopy, a cervix and vaginal area exam, was mislabelled at 100 per cent strength instead of five per cent.
The Wellington woman suffered severe burns to her vagina after acetic acid provided by Newtown Mall Pharmacy to Wakefield Specialist Centre was wrongly labelled.
The Health and Disability Commissioner (HDC) confirmed an investigation into the error was underway but warned a complex investigation could take up to two years.
The pharmacy sent her a letter of apology - and a $50 fuel voucher, which she described as a "slap in the face".