Keep yourself rested and investigate protocols likely to help. Here is mine---
A Protocol for Pandemic Flu...especially for flus that target the lung almost immediately.
At the FIRST sign of a sore throat, or chills or fever, or an itching in the eustachian tubes, apply 3% (food grade) Hydrogen Peroxide to a small cotton ball and insert carefully into the ear canal and let it bubble and itch for a few minutes. Gargling with hydrogen peroxide is helpful as well, or even better take some hydrogen peroxide into your mouth and lean your head backward over the edge of your bed or over a yoga ball, letting the hydrogen peroxide sit in the back of your throat for a minute or so. Do this many times per day. You may also use concentrated saltwater as well with this procedure.
Google Dr. Dan Lee Dimke, PH.D COVID 19 Hot Air Therapy (use the link as long as it remains available https://www.youtube.com/watch?v=_JSsd-TYqOA&feature=youtu.be) or watch my FaceBook video on the application of a heated stream of air from a hair dryer into the nasal passages, in so doing also warming the frontal sinuses and thereby deactivating heat-sensitive viruses. On a low heat setting and with the inlet covered partially with your hand direct a stream of hot air for five minutes toward your nose while inhaling deeply. Have a spray bottle with water in your other hand and spritz your face periodically to prevent any minor burns. Adjust the distance of the stream so that the air feels hot in your nostrils but use your best judgment. Corona viruses are destroyed at 133F. (Some have expressed concern about the possibility of drying out sinuses. Be careful!)
A similar treatment based on the same principle is to allow extremely hot water to flow onto your face when showering, moving your face back and forth under the flow to allow the hot water to contact the skin over the area of your face where the fontal sinuses are located, which are on each side of the nose and above the eyebrows.
It is also important to keep a healthy, naturally-sourced Vitamin B blood concentration using 1-3 heaping tablespoons of large-flake nutritional yeast per day, taken in a slurry of filtered water. Health food stores usually stock this in the bulk bin section.
Also take 2-3 tablespoons of unrefined coconut oil with room-temperature orange juice at every meal, or as tolerated between meals. You can also add it to coffee or tea or take it straight without mixing it with anything.
Add 8 cloves of garlic, chopped, to 7 cups of water, bring to a boil, then drink the boiled water with the garlic pieces.
An Italian folk medicine remedy may be helpful if you sense the infection is gathering momentum in your lungs. Take half of an onion, chop it into small pieces and wrap it in a cloth, creating a poultice, while expressing as much onion juice as you can onto the cloth itself. Apply the poultice to the area of the chest, or the upper bronchial portion of the chest, where you feel the infection is taking hold. Keep it pressed against your skin for hours. It may cause some skin irritation but that can be taken care of after you have fought off the developing pneumonia.
The major portion of our first-response immune system lies in the epithelial lining of our gut, lungs, and sinuses. If you keep a healthy mix of bacteria and fungi in our intestines---by taking probiotics at every meal--you free up the immune system resources to combat pathogens in other parts of the body. Small amounts of sauerkraut, kimchee, fermented dairy products, or probiotic capsules at every meal seed the intestines with beneficial bacteria and fungi.
With the help of an herbalist experienced in the administration of traditional Chinese herbal formulas, consider the use of such formulations as: Yin Qiao (from Mayway), Gan Mao Ling (Mayway), Zhong Gan Ling (Mayway); Yin Qiao Jie Du Pian (from ActiveHerb), Chuan Xin Lian Kang Yan Pian (ActiveHerb), Zhong Gan Qing Pian (ActiveHerb), Qing Qi Hua Tan Pian (ActiveHerb), Chuan Xin Lian Kang Yan Pian (Active Herb), and others. It is important to consult with an herbalist in Chinese Traditional Medicine for the proper ratios and dosages. The use of these formulas and formulas similar to them is a complicated but rational art based on inductive synthesis and refined over the centuries. In the past several millennia China has experienced many hundreds of epidemics and the herbal knowledge acquired is priceless.
Note: a disharmony characterized by Virulent Heat tends to quickly progress to deeper levels unless immediate care is given: bed rest, protection from drafts, fluids, herbs, and diet.
If possible get six products from Standard Process: Immuplex, Congaplex, Thymex, Cataplex B, Tumeric Forte, and Calcium Lactate. These all-natural supplements strengthen the immune system. Standard Process has been in existence for almost 100 years and their protocols represent the best of modern functional medicine.
Squeeze some lemons and drink lemon juice with water. You can also add Buffered Vitamin C Powder from LifeExtension to the mix.
For a natural vitamin B complex, take 1 heaping tablespoon of large flake nturitional yeast 3 times per day in a slurry of water or dilute juice.
Daily sunshine is quite important also, especially in the winter months, as the precursors to natural Vitamin D (actually a hormone, not a vitamin) are made on the skin via interaction with sunlight and are a key step in promoting an adequate immune response. (Do not wash or shower after the sun exposure; leave the natural skin oil in place to be absorbed over time,) If you can't get good sun exposure take vitamin D supplements and lots of them!
600 mg a day = 3 times 6 drops of Oil of Oregano. For: Sore throat, food poisoning, flu, colds, cold sores, congestion, gastritis, candida, colitis, prostatitis, asthma, bronchitis, sinusitis, allergies, tooth ache, gum diseases and fatigue. Be sure to dilute the oil of oregano as it is a very harsh tasting medicinal.
A light meal during any period of sickness is the basic Bieler Soup used very effectively by Dr. Henry Bieler, M.D., which detoxifies the body and flushes out poison, especially from the liver: green beans, celery, zucchini, parsley (a handful of each chopped up and boiled for ten minutes)---but do not add any salt. Eat the vegetables, drink the broth. This soup is mildly diuretic.
When tired during the day, lie down and nap if possible.
I have also found a particular form of melatonin, formulated by Dr. Walter Pierpaoli, M.D. to be very helpful, especially with any flus or cold having lung involvement. It is called Melatonin MZS, which contains zinc and selenium in small quantities to boost the immune system. Take 3 mg before bedtime. It can be purchased from amazon.com. Those under fifty should stop taking melatonin after the illness passes. Those over fifty can take it on a continuing basis, usually at a lower dose.
Finally, Bill Sardi has some excellent suggestions at https://www.lewrockwell.com/2020/03/no_author/the-coronavirus-is-not-causing-deaths-weak-immune-systems-are/
Of course, if the flu progresses to fulminant pneumonia with a high fever, the lungs are assailed by bacteria and you will require antibiotics! Antibiotics will also prevent a viral pneumonia from turning into a bacterial pneumonia and can be used prophylactically with steroids but it is tricky and requires a physician who is quick on his or her feet and will actively follow your progress! At this stage of the disease, the virus is entrenched in the lower lung and a cocktail of Hydroxychloroquine (Plaquenil) + Zinc Sulfate + Azithromycin is being reported as being successful. Ivermectin is also effective and should be considered. (Dr. Mercola of www.mercola.com suggests that the supplement quercetin is even more effective than Hydroxychloroquine, and can be used preventatively to drive zinc into cells.)
For fellow herbalists in the tradition of Chinese herbal medicine, my master teacher, Dr. Lam Kong, proposes the use of the following formula for Clearing Lung Poison: huang qin 2 qian + jie geng 2 qian + qian hu 2 qian + xing ren 3 qian + gan cao 1 qian + zhe bei mu 3 qian + sang bai pi 3 qian + di gu pi 3 qian + gua lou ren 3 qian (chao and break seeds with mortar and pestle) + jin yin hua 3 qian + lian qiao 3 qian + jing jie 2 qian + fang feng 2 qian + if there is a fever: shi gao 10 qian (cook separately for ten minutes before adding other herbs) + bo he 1 qian (added at the end of the boiling period)