It's a good sign that the fever is not continuous and that your child is playful when the fever is down.
102 isn't a really high fever though I know it's annoying when it keeps coming back.
It's important to keep your child well hydrated.
An antibiotic won't help against a virus.
Don't panic, stay calm, monitor symptoms and stay in touch with your doctor.
Fever info:
Types of Fever
Fever can be classified in the following types according to the rise in temperature:
low grade 38–39°C (100.4–102.2°F)
moderate 39–40°C (102.2–104.0°F)
high-grade 40–42°C (104.0–107.6°F)
hyperpyrexia >42°C (>107.6°F)
Treatment of Fever
Generally fevers do not need special medical attention, unless the patient is a child, and the temperature is really high. When an individual has fever, the things that can be done to bring down the temperature and give him comfort are as follows:
The room temperature should be at a comfortable level
Fresh air should be circulating
Ensure the patient drinks plenty of water to prevent dehydration
Give ice cubes to suck
Excessive layers of clothing to be taken off
Paracetamol to be given as tablets (adults) or syrup (children); ibuprofen as tablets (adults) or syrup (children); or aspirin, for adults only. Children under 16 should not be given aspirin.
Did the doctor test for mono?
If it is mono, the symptoms can go on for roughly 2 weeks.
http://www.aboutkidshealth.ca/En/HealthAZ/ConditionsandDi...