My daughter 2 yrs 7 months old has fever since 3 days now. doctor suggested augpen ds antibiotic along with paracetamol with mefanamic acid suspension. its been 3 dose of antibiotic till now from yesterday but fever is coming back in 6-7 hours after taking paracetamol. fever started after the baby had cold which is in contol now. how long goes it take to subside fever even though 3 doses of antibiotic are already taken