HEALTH AT WORK

Industrial Health

Florist Developing Skin Rash on Hands After Daily Contact With Wet Stems and Pesticides

23 September 2026 · Health at Work · AI-assisted draft

Photo: Amina Filkins / Pexels

You handle flowers all day. Your hands are almost never dry. By the end of the week, the skin between your fingers is red, cracked, and itching in a way that does not quite go away over the weekend. If this sounds familiar, you are not alone and you are not imagining it. Florists develop occupational skin disease at a rate that consistently places the trade among the highest-risk occupations for hand dermatitis. The causes are specific, the progression is predictable, and with the right intervention the damage can be stopped — but only if the problem is recognised for what it is rather than dismissed as dry skin.

What Is Actually Happening to the Skin

The skin on the hands acts as a barrier. It keeps irritants out and moisture in. That barrier depends on a thin film of natural oils and an intact outer layer of skin cells. When hands are repeatedly wet and then allowed to dry — which describes the working day of almost every florist — the outer layer swells when wet and contracts when it dries. Done often enough, this mechanical cycling alone causes microscopic cracks. The skin becomes more permeable, and everything that touches it thereafter reaches deeper layers that were never meant to be exposed to the outside world.

At that point, two distinct processes can take over. The first is irritant contact dermatitis, which is a direct chemical injury caused by the substances in the water and on plant material. The second is allergic contact dermatitis, which is an immune response that develops after repeated exposure to a specific allergen and then triggers every time that allergen touches the skin. Both can be present at the same time, and distinguishing between them matters enormously for treatment and for decisions about continuing in the trade.

The Specific Hazards in a Florist's Working Environment

Wet work is the foundation of the problem. Any task that keeps the hands wet or requires repeated hand washing for more than two hours per day meets the occupational definition of wet work, and florists frequently exceed this. Cutting stems, conditioning buckets, arranging wet foam, washing vases, and handling ice-packed wholesale boxes all contribute to cumulative moisture exposure.

On top of that, the plants themselves carry hazards. Chrysanthemums, alstroemeria, tulips, primula, and many other commonly sold species contain compounds that are recognised sensitisers or irritants. Alstroemeria is particularly well documented: it contains tulipalin A, the same lactone found in tulips, which is one of the most common causes of allergic contact dermatitis in florists worldwide. Once a person is sensitised to tulipalin A, even brief contact with the bulb or sap can trigger a reaction that spreads beyond the point of contact.

Pesticide residues are a separate layer of risk. Commercially grown cut flowers are among the most heavily treated crops in agriculture. By the time flowers reach a wholesaler or florist, residues of fungicides, insecticides, and growth regulators are present on petals, stems, and leaves. Many of these compounds are not classified primarily as skin hazards on their safety data sheets, because they are assessed for ingestion and inhalation risk rather than for prolonged daily skin contact in a handler who also has a compromised barrier. The combination of a damaged barrier and daily low-level pesticide contact creates a route of exposure that the risk assessment for the grower never considered.

Preservatives added to the water in buckets and vases add another potential allergen. Biocides used to extend vase life — including some formaldehyde-releasing preservatives — are contact allergens in their own right. A florist who reacts to the water in a conditioning bucket may be reacting to the preservative rather than to the plant.

Early Signs That Are Easy to Miss

The first sign is usually mild dryness at the fingertips and in the web spaces between fingers, appearing after work and resolving over the weekend. At this stage, most people apply hand cream and think nothing more of it. The dryness is the barrier beginning to fail, and if the exposure continues without any protection, the next stage follows within weeks to months.

Redness then appears, typically starting on the dominant hand and concentrated on the fingertips, the sides of fingers, and the backs of the hands. The skin may feel tight and slightly rough. Small blisters — vesicles — may appear, particularly on the sides of the fingers in a pattern called dyshidrotic eczema. Itching becomes persistent rather than occasional. The skin may begin to crack at the knuckle creases, and those cracks can bleed.

At this point, the skin barrier is significantly compromised. Continuing without intervention typically leads to chronic dermatitis: thickened, lichenified skin, deep painful fissures, and a condition that no longer resolves over rest days. At the chronic stage, even tasks that seem unrelated — washing dishes at home, gardening, applying scented products — can trigger flares because the barrier never fully recovers between exposures.

What Employers Are Required to Do

In most jurisdictions, employers have a legal duty to assess and control exposure to substances that can cause occupational skin disease. Wet work, plant saps, and pesticide residues all fall within the scope of hazardous substance regulations in most regulatory frameworks. A compliant employer should carry out a written skin risk assessment specific to florist tasks, not a generic one borrowed from another industry.

That assessment should identify which tasks involve wet work and for how long, which plant species are handled and whether any are known sensitisers, what chemical additives are used in water and for cleaning, and whether individual workers have reported any early skin symptoms. The outcome should feed directly into a control plan, not sit in a filing cabinet.

Employers should provide appropriate skin protection products — pre-work barrier cream, moisturiser for use during breaks, and after-work emollient — and ensure workers have easy access to them at the workstation, not in a locked cupboard. Gloves must be provided, but the choice of glove matters; this is addressed below. Health surveillance — periodic checks on the skin condition of workers in high-risk roles — is a duty under most occupational health regulations and provides the early warning that allows intervention before chronic disease develops.

Controls That Actually Work, and Controls That Are Weaker Than They Look

The most effective single control is reducing the duration of wet work. Batch-processing tasks so that hands are not continuously wet — cutting all stems in one period rather than throughout the day, using tools that keep hands away from water — reduces the cumulative swelling and drying cycle that destroys the barrier. This is an engineering and workflow control, and it costs nothing except planning.

Gloves are effective but widely misused in this context. Standard latex gloves are a poor choice for florists for two reasons: latex itself is a sensitiser that causes type I allergic reactions in a significant minority of wearers, and the occlusive environment inside a latex glove accelerates barrier damage through sweat. The better options are nitrile gloves for most wet tasks, and cotton-lined or cotton inner-glove combinations when longer wear is unavoidable. Gloves should be changed if they become wet inside, and hands should be dried and moisturised after glove removal, not before.

Barrier creams are useful but not a substitute for gloves. Their role is to support the skin between tasks and after washing, not to replace physical protection against chemical exposure. After-work emollients are underused and highly effective: applying a rich moisturiser immediately after the final hand wash of the day, before the skin dries completely, significantly reduces overnight barrier disruption.

What is consistently overestimated is the protective value of simply rinsing hands more frequently. Rinsing without thorough drying adds to wet-work burden. If hands are to be washed, they should be washed with a mild fragrance-free liquid soap, dried thoroughly with a soft disposable towel, and immediately moisturised.

What a Florist Should Do if the Rash Has Already Started

If the rash has been present for more than two weeks despite moisturising, or if it involves blisters, bleeding cracks, or is spreading to the wrists and forearms, this is the point at which self-management is no longer sufficient. A consultation with an occupational health practitioner — or a dermatologist with experience in occupational skin disease — is needed rather than a general practitioner appointment alone.

The reason specialised input matters is that distinguishing between irritant and allergic contact dermatitis requires patch testing, which a general practitioner cannot perform. Patch testing applies a standard battery of known allergens — including the Compositae mix for plant allergens, the fragrance mix, preservatives, and rubber accelerators — to the skin under closed occlusion for 48 hours. The result tells both the worker and the employer which substances must be avoided permanently. Without this information, the worker may continue to be exposed to the specific allergen causing the immune reaction while believing they are protected because they are wearing gloves and using cream.

If an allergy to alstroemeria or tulip bulb compounds is confirmed, the prognosis for remaining in floristry without ongoing disease depends on how completely contact can be avoided. For some workers, strict glove use achieves this. For others, the sensitisation is so established that even trace exposure through aerosols and sap spray triggers a reaction, and a change of role or trade becomes the medical recommendation.

What People Most Often Get Wrong

The most common misunderstanding is that the rash is caused by the flower arrangement work itself rather than by the combination of wet work, biological allergens, and pesticide residues acting together on a barrier that has already been weakened. Workers often try switching to a different hand cream, changing soap, or avoiding one plant species while continuing all other exposures unchanged. None of these targeted interventions work because they address one component of a multi-factorial problem.

Employers frequently underestimate the occupational origin of the problem because florists' hands look like the hands of anyone who does a lot of housework. The clinical appearance does not distinguish occupational from domestic dermatitis; only the exposure history and patch test results do. This means that a worker whose condition is documented as occupational dermatitis may be sent home with a steroid cream and told to moisturise, without any workplace assessment or modification, and will return to the same conditions that caused the damage in the first place.

Getting the diagnosis right, reporting it as an occupational condition, and triggering a proper workplace assessment is not bureaucratic box-ticking. It is the only intervention that breaks the cycle and gives the skin a realistic chance to recover.