Question: Is it permissible to use perfume such as oil-based ‘ood and colognes and incense during the day in Ramadhaan?
Response: Yes, it is permissible to use them on the condition that one does not inhale the incense.
Shaykh Ibn Baaz
Fatawaa Ramadhaan – Volume 2, Page 499, Fatwa No.451.fatwaonline.com