My partner is probably the same as your sister
I also often have low fever
I used various methods such as intravenous drip, antipyretic drugs, and antipyretic injections , take oral liquid
It is only temporarily effective. She has been better for a few days, but she still has a low fever for a few days.
Now I have prescribed some food for her. She eats in moderation
Spicy and cool medicines are also a kind of medicine. Be careful not to eat fried foods
Eat more foods and supplements that are good for the body
If your body's resistance is particularly weak, eat more foods containing resistance (go to the pharmacy and other places to ask)
This is one kind and another kind, which is a bit evil, but I still don't recommend you to go see it
I went to find a Feng Shui master to show her but it was not easy to try