ANSWER:

You can pray with perfume or ittar on you.

No problem in using even strong perfume providing you won’t pass by any non mahram and they won’t be able to smell it, as this is a major sin. 

As summer are approaching , to smell fresh is it allowed to put perfume or body spray and offer namaz with it . Taking care that the fragnance is very mild . And if not than can we apply itar and offer namaz.