Work permits or employment certificates must be obtained from your local school for all minors 14 and 15 years of age before beginning work. 820 ILCS 205/9-12.
The key in using apple cider vinegar to treat kidney stones is consistency. You should take apple cider vinegar every day with lots of water until the stone is completely dissolved, or the pain from the kidney stone (and accompanying issues while urinating) goes away completely.
It is that patients with kidney disease can drink cranberry juice, but they had better control the drinking amount when their potassium or phosphorus level is higher than the normal. The amount of it is also important to help patients with kidney disease.