Mcdonald’s worker protests.

McDonald’s Corp restaurant employees from 19 U.S. cities made complaints to regulators that their working conditions are hazardous and have led to severe burns from fryer oil and hot grills.

Complaints filed with the U.S. Occupational Safety and Health Administration (OSHA) as well as various state authorities included claims that workers were pressured to clean and filter fryer oil while it was still too hot to do so. Some complaints even went as far to say some managers advised workers to treat themselves with condiments such as mayonnaise due to a lack of first aid equipment.

Brittney Berry, a member of McDonalds staff, said she was rushing to meet managers’ demands to work faster when she slipped and fell on a wet floor at a McDonald’s restaurant in Chicago, causing her to suffer from a severe grill burn on her forearm and nerve damage to her wrist.

“The managers told me to put mustard on it, but I ended up having to get rushed to the hospital in an ambulance”.

A survey released Monday by the National Council for Occupation Safety and Health found that 36 percent of workers reported that first aid kits were empty or inaccessible. The survey also found that one third of fast-food workers in the United States have been advised by management to treat burns with condiments. The root of the problem has been outlined by workers as not being pressured to work fast and not enough members of staff.

In response McDonald’s said the company and its franchisees are committed to providing safe working conditions for employees in the brand’s in all of their 14,000 U.S. restaurants.

In addition McDonald’s workers have claimed they have been subjected to wage theft, retaliation for attempting to unionize, racial discrimination and are trying to hold McDonald’s Corp responsible for the actions of its franchisees.

Experts say a win could force the company to negotiate an agreement with workers.