From August 21 (Friday) - August 25 (Tuesday) mom had fever 38.5C, which later developed sore throat to the severity that she couldn't eat or drink. She asked about getting IV drip after having glucose drink once. By Aug 26th when I found a doctor with home visit service, she felt a bit better and no longer want doctor's home visit. Dad bought her Dentepro Spray which helped sooth her throat slightly. Not sure what caused the fever, could be infection. The air at the time was also very hazy.