Hi sumamb....use castor oil little bit while cooking dal daily...will solve the problem gradually.
their are many ways u can get rid of pinworms naturally .
1.garlic is the best way to grt rid of it.Use garlic in your food in take,for best results eat the garlic raw in empty stomach in the morning.see the wonders...it's gone
2.make a paste of garlic mix with coconut oil or petroleum jelly and apply near the annal region.and see the results....it's gone
3.use grated coconut in your diet or eat it in empty stomach followed by a spoon full of castor oil daily for2days.
grapefruit juice also will help.
pinworms may reoccur so continue for 3months (castor oil weekly once )clean your bed covers,towels everyday.