During a time when millions of Americans are anxious to know if they have or have had the novel coronavirus, at-home testing kits may seem like a great option. 

But Senator Charles Schumer says those tests may be doing more harm than good.

"We are here today to sound the alarm and urge a crackdown on something that is starting to infect our testing regime,” Schumer said during a news conference Sunday.

The do-it-yourself test kits are sold online and promise to detect COVID-19 or antibodies of the virus.

Schumer says many of these tests are unproved, untested and unregulated.

He wants the Federal Food and Drug Administration to ramp up its policing of these tests, which will play a big part in reopening the country.

"It will delay our recovery, it will make the problem worse and it will endanger the lives of people,” Schumer said.

Schumer sent a letter to the FDA asking for three things: more oversight of the marketplace where these test are being sold, a list of the tests approved by the agency and cease and desist orders to companies selling kits without FDA approval. 

"We cannot have false tests being sold online," added Schumer.

Last week, the FDA authorized the first diagnostic test with an at-home sample collection option for COVID-19. 

After patients self-swab to collect their nasal sample, they mail their sample to Laboratory Corporation of America for testing. 

The agency began allowing companies to sell their kits without prior review, as long as the companies promise to validate their tests, notify the FDA, and market them with the appropriate disclaimers.

At a White House Briefing on Friday, FDA Commissioner Dr. Stephen Hahn was asked about their oversight.

"We are working with the national cancer institute and the CDC to perform our own validation of the tests that have been sent to us, so we will provide as we possibly can," said Dr. Hahn.

In a statement on Monday, the agency said some developers have misused their policy and falsely claimed their tests are FDA approved.

The FDA says when it becomes aware it will take action.