I think infections of the sort interfere and disrupt with many pathways in your body causing it to react in strange ways or keeping the body at lower temperature keeps the instruder from dying it is . The best thing to drive your temperature up is a near infrared sauna although I love the regular sauna too many Electro magnetic frequencies can cause parasite to see this as an attack and cause them to multiply rapidly I have read that! I think maybe a hot bath every night or one of those cool new steam showers.