I stopped breastfeeding my daughter about 5 weeks ago.after her 2nd birthday. since then she has been waking up at night screeming, she doesn't let me to touch her all she wants is screeam. nobody gets any sleep and things are very bad in the house now as we are all so tired. my gp prescribed the syrup and for the first time she never woke up once at night!i am happy but worried as well is the syrop will do any harm to her?what about any sides effects?how long should i continue giving her this?