hello i read your question an understand your concern i would like to ask that * all member at your home having the same complaints? * itching mainly at night time? * any itching or spots/rashes in your finger webs? i would suggest to see your doctor as it looks like that you all are having scabies which should be treated at once and at same time you can use lotion calamine and apply below neck to your whole body for at least 3 days you can take anti allergic as well wash your bed sheets, towel clothes with properly and you all need to be treated at the same time i hope my answer will satisfy you good luck & tc