Hi Temperature >100F would be fever you can stop the paracetamol and azithromycin. For the heel pain you can soak them in warm water with salt for 10-15 minutes. You could have plantar fasciitis but can’t say for sure. Do stand for long hours in a day if yes check if you have varicose veins. Take breaks while standing , elevate your feet when you sit, change your footwear to something which gives you good support and is not too hard or wear shoes with socks.

Try this. Immerse your feet ankle deep in warm salt water for half an hour twice a day..

Get your blood checked for Cbc Mp Ns1agDengue widal UrineR and get a lateral view Xray done of your foot and followup with reports for further guidance

Need detailed history and evaluation for better management