Adult temp of 101.4. other day fever free however all last week had a temp. on antibiotics. is it normal to get a high temp again like this?

You may need to: get back to the healthcare provider that treated you initially if the fever is increasing back up or persistent. Sometimes fever can occur due to a viral infection that the antibiotics (which are used to treat bacterial infections) cannot touch. Or it may be a sign that the original bacterial infection is resistant to the antibiotic that you are taking.