How to Wipe Out Jealousy in Terms of Doubts

we cant deny the fact that most of the time jealousy is the consequence of doubts. Therefore, we need to disappear or vanish doubts in our mind by trusting them or giving a full trust to somebody or someone.
But it is also a fact, according to psychology, that trust and mistrust dilemma has been there since we were babies. Behind of all this doubts and fears is the feeling of asking yourselves, "is it really the reality". But despite of that no one should inculcate doubt intentionally.
Cultivating honesty is like sweetener or coffee-mate that you add to your coffee every single day. Always assure your partner in life or spouse that you love him/her. This act will helps to evaporate jealousy and insecurities. At a distance, both partner will not think of something unpleasant such as doing unfavorable to both of them (partners).