Hello. I have been taking it every 6 hours, as that is what it says on packet and that is when I start to feel the aches again. I am only on day one of doing this. Is it okay for a few days? Online it says do not take more then 4 times in 24 hour period and at least 4-6 hours apart. But not clear on how many days you can do this. MY sister thinks it should only be two days.