Yes, absolutely!
Perfumes are 100% safe to use on your doll. However, we recommend that you mist her with the perfume from ~6 inches away from her skin and not spray it on too close or directly so as to leave a wet mark on the skin. This will allow your doll to smell nice without any of the perfume/moisture seeping into the skin. Plus, it can be easily washed off.
Also, another good idea is to spray the perfume on your doll’s wig or clothes.
As for using incense around your doll. Again, it is 100% safe too. If you use incense sticks or candles, please make sure they are situated at a safe distance from the doll to avoid burns.