Disliked Things during Fasting
Question :

Does usage of perfumes, hair oil, shampoo, conditioners and mascara invalidate the fast?

Answer :

Using all the mentioned externally does not invalidate the fast.

Swimming when Fasting
Question :

Is it permissible to swim while fasting, and does it break the fast?

Answer :

It is permissible to swim while fasting, and it does not invalidate the fast. It better to refrain from submerging one’s body in water while fasting.

Blood Test
Question :

If a person is required to have a blood test, and thus extract blood from the body, does this invalidate the fast?

Answer :

No, it does not invalidate the fast.

Brushing Teeth while Fasting
Question :

Is it permissible to brush one’s teeth using toothpaste, and rinse one’s mouth with mouthwash, whilst fasting? Also, if one’s teeth bleed due to brushing, does this invalidate the fast?

Answer :

It is permissible to do so but we warn from swallowing, as this breaks the fast even if the amount was little. It does not invalidate the fast if the teeth bleed while brushing.