I hope that works for you, I know it did for me. I was at the point I was scratching my skin off at night and not sleeping at all! My arms and legs were all bruised up from itching.
This is going to sound weird, but it was the only thing that worked for me! It's a homeopathic recipe, I tried everything and NOTHING worked until my mom made me this weird spray, here is the recipe.
In a 4 Cup Pyrex measuring cup, add 3 Cups water, stir in 2 Tablespoons of Baking SODA and 1 Tablespoon of sea salt (NOT regular table salt). Break open one chamomile tea bag (I got the organic one) and pour into water, break open one peppermint tea bag (also organic one) and pour into water. Put in microwave for 3 minutes. Stir in 1 Tablespoon Aloe vera gel (I got from my plant) and 1 oz witch hazel. Add 5 drops of lavender essential oil. Stir all together. Cool. Strain. I strained mine through a coffee filter I have that is not disposable. I would keep in fridge because it's made with tea.