Coconut oil is not known to relieve constipation, notes WebMD.com. Some conditions that may benefit from treatment with coconut oil include head lice, obesity, high cholesterol, diarrhea and dry skin, although there is insufficient evidence to rate these uses.
Although coconut oil may not be useful in the treatment of constipation, there is developing research that it may be useful in treating other conditions. For example, some research shows applying coconut oil to dry skin twice a day may improve skin moisture. Other research shows that including coconut oil in a spray with ylang ylang oil and anise oil may be an effective treatment for head lice. More research is needed in these areas as of 2015, notes WebMD.com.