Why not simply either take the tablets orally as they were intended, or simply buy a cream and avoid both the hard work and total uncertainty that doing it yourself it will ever be effective?
It's almost certain to be heat sensitive and boiling most things 'kills' them one way or another, so I wouldn't even consider that as an option.
It's almost certain to be heat sensitive and boiling most things 'kills' them one way or another, so I wouldn't even consider that as an option.