Luke 10:27 and 28 says, "Love the Lord your God with all your heart and with all your soul and with all your strength and with all your mind and love your neighbor as yourself. Notice the Bible says that we are to love ourselves. Until we love ourselves we are not truly able to love others with the depth of love that God has ordained for us. Part of loving ourselves is having self respect and treating ourselves as worthy of love and care.
I don't ask my husband if it's alright if I make a doctor or dentist appointment for me. I just do it.
I don't ask my husband for "permission" to purchase basic things that are needed for my health or hygiene or spend the time that I need in order to take care of myself properly. This is part of stewardship that God expects of me.