How do you make a child with chicken pox feel less itchy?

First...: ...Trim his or her fingernails (because children will scratch, no matter what you say or do). Oatmeal baths (aveeno is one popular brand) will soothe the itching better than just about anything. Benadryl (diphenhydramine) (an over-the-counter antihistamine) is somewhat effective in decreasing the itching, but will cause drowsiness in most people. Cool washcloths may help.

Several ways: You can't make it go away but sometimes the little things help. Oatmeal baths help, calamine lotion helps. Sometimes bendryl by mouth helps but will make them sleepy so i recommend it more at night. Tlc helps best.