#AskTheExpert my daughter is 9years old and during sleep tym at her anus area there will be very bad itching to her all the time since 4-5 month and when I checked her I found white colour worm thread like small..kindly suggest what medicines can I give her by which she can get rid of and how does the worms develops at night... theres no problm at day tym just by the itching the area has become very reddish...kindly advice...