To help relieve the itching, especially at night, you can take an over-the-counter oral antihistamine like cetirizine or a slightly sedating one like diphenhydramine to help you sleep. For topical relief on your legs and stomach, apply a mild hydrocortisone 1% cream or calamine lotion twice daily to soothe the skin. Keep the area moisturized with a fragrance-free lotion, wear loose cotton clothing, and avoid hot showers which can worsen itching. Please try to avoid scratching to prevent infection. If the itch persists or a rash develops, consult a doctor or dermatologist for a precise diagnosis.