Try some simple tips
1.Avoid intake of salty , pungent,
sour food,mustard
Exposure to cold, Ac fan, Chilled food,
Day sleep, PEANUTS, chocolates, Dairy food
2. Drink hot milk with Ghee turmeric powder,
sugar candy at bed time
3. Apply coconut oil mix with camphor when rashes and itching Starts
4.Regular intake of Buttermilk, Pomegranate, aloevera, amla, Green garm helps to reduce the problem
5. try to use mung dhal flour or basan for bathing
Ayurveda medicines Such as Laghu soothashekara ras, jeerakadyarista, Bilvadi Vati, Tiktaka ghrita, kamaduga rasa, haridra khanda helps in this condition. Panchakarma treatments like Vamana , virechana, Shastika pinda sweda,shirodara, nasya also helps in chronic cases