When I took the drug my scalp itchiness will decrease, when it starts again, I know it's time to take another dose.
I am not trying to scare you. I am actually very up set with a news in China for a few days. A Chinese lady has most part of the liver damaged by the worms. The worms beat through the vascular of the liver. It's so damaged that the doctors have to remove the liver and put on the table to fix it outside of the body, and then put it back to the body to get 20% of the original liver function.
I am not lying. This news make me be awared how detrimental the worms can be, and made me make up the mind to take more aggressive approaches.