They can escape the treatment by lodging in an air bubble. Therefore, the product needs to be massaged in well in order to overcome this problem.

When the hair becomes wet the insect's reaction is to close down holes in its body surface used for breathing and this can make it more difficult for the product to penetrate. They can close down for around 20 minutes. So for better results apply the product to dry hair and re-treat after 7-10 days.

Retreatment after 7-10 days is highly recommended, to kill any nymphs that have survived and hatched after the first treatment.

The safety of maldison or pyrethrins during periods of pregnancy and breast feeding has not been shown. It is recommended that you seek medical advice before using this product.

Did you know?

Head lice don't like plaited or short hair. During outbreaks, why not try a new up-do.

“Creepy” fact

Head lice, also known as Pediculus humanus capitis, do not hop, jump or fly – they crawl.