I feel like a question like this is better served doing a Google search and finding results from reputable sources...rather than asking a question on HN.
Having said that, Coronavirus is consider a repository illness...so you'd probably perform the same home treatment as any other respiratory illness.
This is good advice generally, especially for severe infections like COVID-19 but there's little evidence _specific_ to COVID-19 and a contraindication with NSAIDs.
The Snopes [1] article covers the general gist although there is an early report around that the minister likely read and passed on in the form of a tweet.
Research is changing constantly right now so evidence may or may not show NSAIDs contraindicated with greater risk than other infections.
Having said that, Coronavirus is consider a repository illness...so you'd probably perform the same home treatment as any other respiratory illness.