Entire Body Feel Bad

A male patient walks into the clinic told the doctor that his whole body feel bad. 

After examining it carefully, the doctor gave him 3 pills with different colors, 

The doctor saying: "Listen carefully, every morning you wake up, first taking the red pill. Remember, take it with a large glass of boiled water that has cooled, and after lunch later, take the blue pill, remember, drinking the warm water in the same volume; at night before going to bed, take the yellow pill, do not forget to drink a large glass of boiled water. "

"Sir, what really happened to me?" the patient asked him a little worried. 

"No problem anything, you just lack of dringking water."