Take it. I would do the whole protocol with ivermectin and all and assume he has it. It seems like he'll ride it out fine, but why go through the hassle of a drawn out illness. One thing that Dr. McCullough emphasizes is that early treatment is essential. Symptoms often start off mild during the viral replication phase, so people do nothing, but that's a mistake. Once it gets past that point, it gets progressively worse. This is how they killed people early on in the pandemic. They offered no treatment and sent people home and told them to wait it out and come back if they have trouble breathing. By then it's too late and they stick them on a ventilator. Your friend is likely not at risk for this scenario, but he might feel like crap in a week or so and then make a bad decision out of fear. So take care of it now.