this young child has vomiting and fever , if he does have diarrhoea then problem is solved and then he has a gastroenteritis which is the infection of his intestines usually caused by virus . and doesn t need all these medications . lanzol is a proton pump inhibitor which decrease the acidity in stomach , an a 1.4 year old child doesn t have acidic reflux for sure , so discontinue it Soventus is a cough syrup , you didn t mention any upper respiratory tract symptoms , if he cough after vomiting it s a normal physiology and doesn t warrant any cough syrup Nemocid is an antihelmentic drug , it shouldn t be used empirically in cases of gastroenteritis unless there is an endemic area . Again , if you child doesn t have diarrhoea, and he is having vomiting and fever for 3 days , then we should worry about other diagnosis and he should be visit his pediatrician, beware of dehydration because increase thirst is the first sign of that I hope this helps