<s>[INST] I have had a burning throat for some time, and salty phlegm. I found that cutting out milk products and wheat helped, but a recent blood test suggested either I was dehydrated or had a kidney problem. I was advised to have a repeat blood test. Could there be a link between the burning throat and a kidney problem?I am 59. Female. Teetotal, non-smoker. 5ft 3ins in height, on no medication. Healthy. [/INST] Hi, dairy have gone through your question. I can understand your concern. You have burning throat and phlegm.  It has no relation with kidney disease.  You may have some respiratory tract infection.  You need to take antibiotics like azithromycin, amoxiclav or levofloxacin for that. It is prescription based medicine so consult your doctor and take treatment accordingly. Take plenty of water.  Repeat your complete blood count and serum creatinine level.  If your creatinine level comes high then you need to go for complete kidney function test to search the cause. Then you should take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health. </s>