### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have been running a fever for nearly a week. (started last Thursday 1/19) at times as high as 106. I know that sounds crazy - but it is accurate. I am using a hospital grade thermometer (Exergen $389)Anyway I went to ER when I developed some pain in my right flank. After taking chest x-ray, sonogram, urine dip, blood draw they couldnt find anything wrong. I think it was just body pain from the fever itself. All the docs tell me is it must be a flu virus. I have clear sinus and lungs, no pain with urination or BM, no diarhea. I am sensitive to molds. I used to get sinus infections when exposed. A few years ago I found out some of my food sensitivities and eliminated them from my diet. I havent had chronic sinus infections since them. Do you think this could be an extreme allergic reaction? I really need to figure out what is happening here. Im pretty weak.

### output:

Hellos you mentioned that you are having high grade fever for one week. While all tests are normal. So such type of fever may be due to these reasons, these include:1 Viral fever or common cold (flu type) , still you have to wait for 3-5 days to subside this fever. Till take Tylenol and plenty of water or juice without ice.2 Malaria is also a cause of such high grade fever provided, you are residing in mosquito prone area. Diagnosis can be confirmed by blood examination for malarial parasite .3 Allergic bronchitis, as you mentioned that few years ago, you were sensitive to some allergens. So any other type of allergy may cause this type of fever due to bacterial infection. In such type of condition patient feel whistling type of sound during breathing. In my opinion deal as mentioned above and wait for 3-5 days. Good luck.