Stock up on your vitamin C and good old CitroSoda 60M.

Vitamin C strengthens the immune system so that your body can fight the infection, and Citro-Soda helps relieve the symptoms of a variety of acid-related problems, including a bladder infection.
Citro Soda Granules contains Glucose, Sodium Bicarbonate, Sodium Citrate and Tartaric Acid as active ingredients. Citro Soda is used for Urine alkalization, Kidney stones, Gastric problems, Antiseptic, Acidity, Heartburn, Acidity in the blood, Anti scorbutic, Appendicitis, Gastric lavage in methanol poisoning and other conditions.
Can I give my child Citro Soda?

Children (6 to 12 years of age):

One effervescent tablet in half a glass of cold water 2 to 3 times daily, taken on an empty stomach and followed with additional water. Drink after effervescence