what would be the point? if you have started tamiflu it is assumed that you started on day one or two. after day three this medication is not indicated. it really may not matter at this point the type of influenza you had (assuming you were properly diagnosed) unless you are getting worse or showing signs of a secondary infection. rapid flu tests are not as accurate as lab based tests so i would need to know what kind of test you were anticipating.
if you've already started tamiflu can you still be tested for h1n1?