 [ Symptoms ] can you get hand foot and mouth disease more than once  my 11 month son was diagnosed with this today and his doctor acted as if you can only contract this once although she did not specifically say that she told me that children over the age of 4 are usually spared as they have most likely already had the disease in the past i have never had this nor has my husband or my two daughters 10 and 5 just looking for any extra precautions that i may need to take [ Disease ] if your brother was specifically prescribed a diuretic by one of his physicians who are treating his lung cancer then yes he should take it each person on chemotherapy is unique often taking different types and dosages of chemotherapeutic agents and not every person would need a diuretic your brother appears that he does i wish your brother and family the very best on his treatment