I'm in the South and today has been a scorcher. My baby is breast and formula fed but more formula. Should I be giving her some cooled boiled water on top of feeds? She's 6 weeks old. I know guidelines say if baby exclusively breastfed then you don't need to, but I'm wondering being that she's combination fed. She's in the coolest room but is very warm and is only in her nappy with a muslin covering her. Appreciate any advice. Thanks.