My son, who is 3.5 year old is suffering from fever from 36 hrs, we have tried ibugesic plus and paracip suspension but the fever does not control and temperature has gone up to 104°F we have consulted a doctor who has prescribed Mefast 100, and blood & urine samples were collected for analysis of malaria, dengue. Reports were negative, but after 4-5 hrs of dosage of Mefast 100 temperature has again gone up to 103°F, pls suggest whether Mefast 100 can be used every 4-5 hrs until temp drops