I hope you feel better soon!
I had to look up Sambal, never heard of it! I use powdered Cayenne Pepper. I do think hot spices can be healthy.
I had not heard that an infection depends on elevated temperature. I am thinking that the elevated temperature helps the body fight the infection. I usually don't treat a low grade fever, just let my body do what it needs to do. But of course, you know what works best for you, and I hope your self doctoring does the trick!
The fever is not low grade, or at least, the total complex of sickness has almost shut me down, and when I cough as well as pain from so frequently, I get really hot and at first I was letting myself cool but I started also getting dizzy and general pain everywhere just even from any moderately intense exercise.
The rest and vitamin rich things I knew from years but I never got a bad fever very often, and it dragged on and on, and I got desprate, did some research, and learned about fever, sweating and chilli. It worked in 3 days, with a reduced food intake, and lots of lying down. The same is clearly working and you will see ina day or two I will be all energetic again.