Question: What is the ruling if someone applies perfume in Ihraam?

Answer:  A Damm (sheep or goat) will be Wajib, if one applied perfume to an entire large limb; e.g. the face, hands, beard, thighs, forearms, upper arms, head, etc

Sadaqah (the amount of Sadaqatul Fitr) will be Wajib, if one applied perfume to a portion of a large limb or it was applied to an entire small limb, e.g. nose, ears, fingers, eyes, moustache, etc

Further more, if abundant perfume was used on a small limb or on quarter or more of a large limb, then too a Damm will be Wajib. 

الواجب دم على محرم ان طيب عضواً ( كاملاً 

فتاوى الشىامى ج ٣ ص ٥٧٤ - مكتبه امداديه

And Allah Ta’ala Knows Best

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