One of my friends is allergic to several kinds of foods. Milk, cheese, eggs, and ice cream are among the items she has to avoid. Even a small amount of these things is detrimental to her health. She's not alone in being required to avoid certain things in life. While her allergies are related to her physical well-being, each of us as believers in Jesus has dangers we need to stay away from to maintain spiritual health. Scripture gives us a clear indication of what we are "allergic to" spiritually.
Every kind of evil (1 Thess. 5:22). This should cause us to think about the choices we make, because taking part in what is clearly evil is not good for our spiritual vitality.
Foolish disputes and arguments (2 Tim. 2:23; Titus 3:9). This takes discernment, for some arguments have merit in defending the faith. But those for which there is no answer or which have no bearing on truth only cause dissension.
Sexual Immorality (1 Thess. 4:3). The Bible says that any sexual activity outside the boundaries of a marriage between a man and a woman is immoral (Gen. 2:24; Ex. 20:14; 1 Cor. 7:2; Heb. 13:4).
Are we willing to make the effort to steer clear of things we are spiritually "allergic to"? To avoid sin, nip it in the bud of temptation. Today, avoid sin and temptations that will lure you to evil thoughts. Don't let sinful things take control and master you someday.