My daughter age 18months is having fever temp 101 since two days , present we are using crosin syrup, and clamp antibiotic , since last two hours she is crying in sleeping. And also she is having cold since a week, her nose block and it s difficult to breathing. My concern is can we use crosin and antibiotic together , if yes how many times we can give to child . Is there any side effect of we give every 4hours.