Wife is not allowed to refuse fulfilling her husband's sexual needs if she is not in her menstruation or post-natal or any other medical reason. Refusing intimacy with her husband is a sinful act.

Husband should try to nicely convince his wife including removing any reason which might have caused her to refuse intimacy. He should be very clean and wear perfume which she like and try to talk to her nicely to make her ready to respond to him.

After doing all that, if she continues to refuse intimacy with her husband, she might need counselling from trusted persons from her female relatives e.g. her mother, her sister etc.

She can be advised to seek guidance from trusted religious scholars or consultants.

Avoid using pressure on your wife because it might give wrong results. Intimacy in its best form is a result of a human delicate feeling, but if she is not ready for it in its best form, she should never deny giving her husband whatever she can to save him from thinking to go elsewhere to fulfill his natural needs. That is why Islam made it compulsory on the wife to offer what she can to meet the needs of her husband.

Wassalam .