Is camomile tea ok for breastfeeding mothers and baby? what other hot beverages can mother take?

Yes: Camomile tea is just fine as are green tea, peppermint tea, black tea, white tea and hot chocolate in moderation.

OK; use moderation: Mothers report that babies most often object to chocolate; spices (cinnamon, garlic, curry, chili pepper); citrus fruits and their juices, like oranges, lemons, limes, and grapefruit; strawberries; kiwifruit; pineapple; the gassy veggies (onion, cabbage, garlic, cauliflower, broccoli, cucumbers, and peppers); and fruits with a laxative effect, such as cherries and prunes.