Hi My Daughter Is 2.8 Yrs Old. She Is Suffering

Hi my daughter is 2.8 yrs old. She is suffering from wheezing problem from couple of months and this time it is 3rd time with in 2 months. She is having fever and a bad cough with vomiting few times. Doctor has advised advent, livolin and crocin with montair c. She is alergic , please guide me how should i take care of this alergic proble