The medical treatment for an illness produces a worse net result than the illness does (or threatens a non-negligible risk of doing so), especially via adverse effects.

(idiomatic) To be aware of where one's interests lie in a situation.

If something is acceptable for one person, it is acceptable for another (often of the opposite sex). / One who treats others in a certain way should not complain about receiving the same treatment.

Pronunciation spelling of his.

There is nothing truly novel in existence; every new idea has some sort of precedent or echo from the past.

laughing will make one feel better

A visualisation is a better description than a verbal description.

Two parties who have an enemy in common should join forces against it.

(simile) Life is full of surprises; you never know what will happen next.

In the actual circumstances (and often contrary to expectations). / Already; without adding further difficulty or complexity. / Used other than figuratively or idiomatically: see as, it, is.