Heartburn at 7months

Hi mummies, is there any natural way to cure heartburn? Mine already started at night. I don’t do late dinner. My dinner is at 5-6pm, I will have this heartburn about 9pm. It’s affecting my sleep. Sigh I googled to sleep on the left side. But when I sleep left, it worsen the condition . I tried to drink yakult today. Hope it helps Pls help me.