my daughter is 12 yrs, has been having fever and chest congestion for the past 5 days, is on cefexime 200 mg for the past 4 days as prescribed by the doctor, but for the past two days has had very high temperatures, between 100.7 to 102.4 with chills in the night which is not coming down. gave crocin , but fever returns within 2 hours. can i give meftal within 2 hours of having given crocin?