An adult bed bug dies easily. Its eggs, hidden in a bed frame crack, survive almost everything you try on your own. That gap is what turns a promising DIY treatment into an infestation that comes back six weeks later.
Diatomaceous earth: it works, but slowly and it's usually misapplied
Diatomaceous earth (fossilised silica powder) dehydrates a bed bug's exoskeleton on contact. It genuinely works, but takes several days, not one application.
The most common mistake: piling it on in visible mounds. Bed bugs avoid heavy powder deposits. A thin, invisible layer worked into cracks and along skirting boards performs better than a thick pile.
Alone against an infestation established for several weeks, it never covers every refuge zone (outlets, bed frame, carpet) — survivors rebuild the population.
DIY heat treatment: dryers and steam help, but only so much
Washing fabric at 60°C minimum and tumble-drying for 30 minutes kills bugs and eggs — effective on textiles, useless on a mattress or bed frame that won't fit in a machine.
A portable steam cleaner treats mattress seams and skirting, but only the surface directly exposed to steam for several seconds. A 2mm crack stays out of reach.
Professional heat treatment heats the entire room to 55-60°C for several hours — the only method that reaches eggs inside furniture cavities, impossible to replicate with a hairdryer or a space heater.
Home remedies: they ease the bite, not the infestation
Essential oils (lavender, tea tree), baking soda, white vinegar: none of these has a demonstrated insecticidal effect on adult bed bugs, and none reaches the eggs.
Their smell can push bed bugs to move to another room rather than die — creating a false impression of improvement while the infestation spreads.
Useful as a complement to soothe a bite (see our guide on bed bug bites), not as a primary treatment.
Why DIY treatment usually fails
The life cycle is the real obstacle: an egg hatches in 6 to 10 days. A treatment that kills visible adults but misses hidden eggs sees the infestation restart from scratch two weeks later.
Bed bugs disperse in reaction to partial treatment: vacuuming, localised heat or spray insecticide push them into neighbouring rooms instead of eliminating them, turning an isolated spot into a spread infestation.
A professional inspection identifies every refuge zone before treatment — mattress, bed frame, skirting, outlets, adjacent furniture — which an untrained inspection consistently misses.
When to switch to professional treatment
If signs (droppings, shed skins, eggs) persist after a week of DIY treatment, or bites reappear on a new area of the body, the infestation wasn't treated at the root.
Antinox combines room heat treatment with residual insecticide to cover both visible bed bugs and hidden eggs, with a follow-up check.
Frequently asked questions
Is diatomaceous earth enough against bed bugs?
It reduces the population if applied correctly, thinly, over several days, but doesn't treat eggs or unreachable refuge zones. Rarely enough alone on an established infestation.
Can you kill bed bugs with a hairdryer or a space heater?
No. The required temperature (55-60°C, sustained for hours across the whole room) is only achievable with professional heat treatment equipment.
Why do bed bugs come back after DIY treatment?
Because eggs, protected in cracks, survive the treatment and hatch a few days later. Without locating every refuge zone, the cycle restarts.