Kaffara for Using Perfume
Question :

What is the kaffara of eating or using perfume in ihram?

Answer :

It is prohibited for the person during ihram to use musk, amber, saffron and waras; it is also prohibited to use camphor based on obligatory precaution. It is disliked to use other kinds of perfumes and scents.
The kaffara for eating food that contains such scents is to slaughter a goat or sheep for the needy people. When one eats more than once, he should repeatedly pay the kaffara. Based on an obligatory precaution one should give the said kaffara for other usages of the mentioned perfumes and scents during ihram.

Clothes with Buttons
Question :

What is the ruling if the Ihram clothes have plastic buttons?

Answer :

It is prohibited for the person during Ihram to wear clothes with buttons.

Touching the Opposite Sex During Ihram
Question :

There may be times during Hajj or Umrah when there is contact between husband and wife when they're in the state of ihram, for example when they are assisting one another. Is this permissible?

Answer :

Yes, such contact is permissible as long as there are no sexual intentions.