Perfume should not be put on the upper garment and the lower waist garment. The Sunnah is to apply perfume to the body, like the person's head, his beard, and armpits and so forth, In reference to the clothing, perfume should not be applied to them when assuming Ihram, This is due to the Prophet's statement: He (the Muhrim) does not wear anything from the clothing that has been touched by saffron or Al-Wars. Thus, the Sunnah is that the person applies perfume to his body only. In reference to the clothing of Ihram, he does not apply perfume to them. If he applies perfume to them, he should not wear them until he washes them or changes them.
1.Al-Bukhari no. 1542, Muslim no. 1177 and Ahmed no. 2:59