Kill Me a Little, Kill It More

Give me a poison,
but let it know my enemy.

Let it enter through my lips,
travel the rivers beneath my skin,
and find the stranger
who has made my body home.

Let it strike,
but let it strike more fiercely there.
Let the invader fall
before the fortress does;
let the fever lose its fire
before my strength gives way.

For I have swallowed bitter things
in the name of getting better.
I have welcomed chemicals
I would otherwise fear,
trusted measured drops
of substances that, in excess,
might turn against me.

Isn't that the curious bargain?
To invite a little danger
in the hope of escaping a greater one;
to make an enemy of the thing
that might have been my undoing,
while praying it does not mistake
my flesh for its own.

But the substance does not know.
It is a molecule,
not a judge.
It carries no map
of what I hope to save,
no tenderness for the hand
that brings it to my mouth,
no hatred for the life
it has been sent to end.

It acts.
And between its action
and my survival
lies the fragile mathematics
of dose, time,
and the differences
between what we are
and what threatens us.

Beyond this fragile skin,
the same strange bargain waits:
in fields where insects feed,
in rooms where crawling things gather,
in the quiet war between
what we must destroy
and what we must preserve.

What kills the mosquito
may threaten the child.
What clears the surface
may poison the hand.
The same substance
that answers one danger
may become another
when the measure is wrong.

A dose too weak,
and the enemy may endure.
A dose too strong,
and the victory may cost too much.
Between the two
lies a narrow, shifting line
that neither fear nor courage
can afford to ignore.

And the line is not always clear.
A body is not a formula.
A measure is not a promise.
What one person bears with little trouble
another may struggle to survive.
Even when we know the numbers,
uncertainty waits
in the spaces between them.

Perhaps healing
has never promised innocence.
Perhaps survival sometimes asks
that we choose our harms carefully,
measure our weapons wisely,
and know the difference
between what must die
and what must remain.

For the aim was never
to prove that harm could be avoided,
but to keep it from becoming
the greater harm.

So give me what can fight for me,
but let wisdom guide the measure.
Let the cure do what it came to do,
and spare what it came to save.

Kill me a little,
if you must—

but kill it more.

And let me live
to call it healing.

About This Reflection

Kill Me a Little, Kill It More explores the uneasy bargain at the heart of some treatments: accepting the possibility of harm in the hope of preventing something worse. From medicines that fight infections to chemicals used to control harmful organisms, the reflection considers the delicate balance between destroying a threat and protecting the life at risk. It asks what it means to heal when the very substance that offers protection may also cause harm.

The Medical Context

Many treatments work by interfering with biological processes, but their effects are not always limited to the intended target. Some medicines exploit differences between harmful organisms and human cells. Antibiotics, for example, can target features of bacteria that human cells do not possess. Other treatments act on processes within the human body, sometimes affecting both diseased and healthy tissues. Chemotherapy illustrates this challenge: many chemotherapy drugs target rapidly dividing cells, which include cancer cells but may also include healthy cells in tissues such as the bone marrow, digestive tract, and hair follicles. This is one reason chemotherapy can cause side effects such as reduced blood cell counts, nausea, and hair loss. The balance between benefit and harm therefore matters, even when treatment is necessary to control a serious disease.

This principle extends beyond medicine. Insecticides are designed to control pests, while disinfectants are used to inactivate harmful microorganisms on appropriate surfaces. Yet these substances can also harm people, animals, or other organisms when exposure occurs under unsafe conditions. Their effects depend on factors such as the substance, concentration, dose, route of exposure, and duration.

The concept of selective toxicity describes the ability of a substance to harm a target organism more than the host or other organisms exposed to it. The therapeutic window describes the range of doses or drug concentrations within which a medicine is expected to provide benefit without unacceptable toxicity. Neither concept guarantees complete safety. A dose that is appropriate for one person may not be appropriate for another, and even correctly used treatments can cause adverse effects.

The challenge, therefore, is not simply to eliminate a threat, but to do so while minimizing harm to what we intend to protect. This requires evidence, appropriate dosing, careful attention to instructions, and an understanding that every intervention has limits.

The reflection’s central idea is not that harm is always necessary for healing, but that when an intervention carries risks, its value depends on whether its benefits justify those risks and whether the intended protection can be achieved without causing greater harm.