Q.my daughter is 6yrs,weight-18 kilo,height-3 2 ,last year on november she was suffered with E.coli infection, from last few days she was complaining stomach pain,in stool report there is entameaba histolytica cysts seen,after doctor s advise she is taking o2h 250g twice a day,in two days after taking the medicine she is vomiting and complaining severe stomach pain,what to do?