I'm sorry to hear you're feeling cold and have a mild fever. A fever of 99°F is slightly elevated and may indicate your body is fighting an infection.

Here are some steps you can take to feel better before your presentation:

• Rest: Try to get adequate rest to help your body recover.
• Stay Hydrated: Drink plenty of fluids like water, herbal teas, or fresh fruit juices to stay hydrated.
• Medication: You may consider taking an over-the-counter fever reducer and pain reliever such as Paracetamol (e.g., Calpol 650 mg tablet). It helps reduce fever and relieve discomfort. Follow the dosage instructions on the package or as advised by a doctor.
• Keep Warm: Dress comfortably and use a light blanket if you feel cold.
• Light, Nutritious Food: Eat easy-to-digest meals such as khichdi, dal, and seasonal fruits to support your immune system.

If your fever rises above 100.4°F (38°C), persists beyond 2 days, or you develop other symptoms like difficulty breathing, severe headache, or rash, please consult a physician promptly.

Since you have an important presentation, try to balance rest and preparation, but prioritize your health.

If symptoms worsen or you need personalized advice, please consult a general physician or an internal medicine specialist.To narrow down potential causes, we will need some more information.Please tell me your age and gender.