6.3 Skin Conditions of the Hands and Feet
Key Takeaways
- NIC requires recognition of skin conditions on the hands and feet; undiagnosed rashes, open areas, and infectious skin disease are not treated at the nail table.
- Nail psoriasis shows pitting and oil-drop (salmon) patches; it is not a fungus and must not be filed or covered as onychomycosis.
- Contact dermatitis from product overexposure is an inflammatory skin reaction—red, itchy, sometimes vesicular—handled by stopping the offending product, not by pushing through the fill.
- NIC sample teaching recommends oil manicures for brittle nails; anhydrous (dry) skin and onychorrhexis are the dry-side findings, while hyperhidrosis is the wet-side finding that raises fungal and bacterial risk.
- Tinea pedis (athlete’s foot) is a contagious skin infection of the feet; a pedicure on active athlete’s foot is a refuse-and-refer decision under 18VAC41-20-270 A 4.
Skin is part of the nail service
Quick Answer: Inspect the skin of the hands and feet before you inspect polish. Undiagnosed rash, open sores, weeping eczema, active athlete’s foot, and nail psoriasis with onycholysis are not “add a little oil and proceed.” Oil manicures are the NIC-highlighted service for brittle, dry nails. Chemistry of overexposure is Chapter 7; this section is the skin picture you must recognize at pre-service.
A manicure or pedicure is performed on skin plus nail. NIC Anatomy and Physiology items ask for signs, symptoms, and causes of conditions of the skin in the same breath as nail disorders. If the fold, palm, toe web, or heel is diseased, the requested nail service is often contraindicated even when the plate looks almost normal.
Do not treat undiagnosed rashes. That sentence is a scope rule, not a courtesy. A red patch on the hand may be contact dermatitis, eczema, psoriasis, tinea, or something a physician must rule out, including infection. Guessing with a callus blade or a monomer brush is how technicians leave their lane.
Contact dermatitis (product overexposure)
Contact dermatitis is inflammation of the skin after contact with an irritant or allergen. In nail technology the usual sources are monomer, primer/acid, adhesives, solvents, dust, latex gloves, and repeated wet work. Chapter 7 will go deeper on chemistry, overexposure, and MMA versus EMA. Here you need the table-side look.
Signs: redness, itching, burning, dry scale, or vesicles on fingers, eponychium, or the technician’s own hands. The distribution often matches where product sat—lateral folds after flooding the cuticle with gel, fingertips after wiping uncured product with a bare finger, or a glove-line on the technician.
Not contagious as an allergy or irritant reaction. Service decision: stop the offending product. Do not “get through this fill” on inflamed skin. Do not apply more primer to “dry it out.” If the skin is broken, vesicular, or severely swollen, refer. For the technician, overexposure is an occupational health problem: better ventilation, no-touch product technique, and gloves as appropriate—not more monomer on bare skin.
A client who develops redness and itching only on the fingers that wear enhancements, starting a day after a new system, is telling you a product story. Switch-and-hope without a pause is how a dermatitis becomes a chronic fold problem and then a paronychia.
Eczema on hands and feet
Eczema (including atopic and chronic hand eczema patterns taught at this license level) is a noncontagious inflammatory skin condition. Signs: dry, itchy, red, cracked skin, sometimes thickened from scratching, sometimes oozing in a flare. Palms, finger webs, and around the nails are common. Feet can be involved.
Cause at the exam level: a mix of barrier failure, irritants, and inflammation—not a salon fungus you can grind off. Service: If the skin is intact, not oozing, and the client has no undiagnosed mystery rash, a very gentle natural service with minimal product on skin may be possible. If the skin is open, bleeding, vesicular, or undiagnosed, refuse. Water soaks, acids, and peelings worsen cracked eczema. Do not put an eczematous foot in a long hot whirlpool “to soften callus.”
Eczema is not tinea pedis. Tinea pedis is contagious and often lives in toe webs. Eczema can look red and itchy too. That is exactly why undiagnosed remains the rule: you do not have to tell them which inflammatory disease they have. You have to know you will not treat it.
Psoriasis of the nails (and nearby skin)
Psoriasis can involve skin and nails. On skin of hands or feet you may see well-defined plaques with silvery scale. On nails, the high-yield signs are:
- Pitting — small ice-pick depressions in the plate from matrix involvement.
- Oil-drop or salmon-patch discoloration — a yellowish-red spot in the bed.
- Onycholysis — separation that can mimic fungus.
- Crumbling or thickening that is not dermatophyte disease.
Psoriasis is not a fungus. It is not contagious. Filing a pitted, crumbling psoriatic nail “because it looks mycotic” injures a medically involved unit and does not treat psoriasis. Refer. Do not apply enhancements on psoriatic onycholysis. Do not put a medicated-looking “antifungal” soak on it in the salon. A physician distinguishes psoriasis from onychomycosis; you do not.
Exam trap: yellow, separated, pitted nails. Students jump to onychomycosis. Look for pits and oil-drop color and a history of skin plaques. Either way, if you are unsure, the safe behavior is identical: stop product, refer. The difference matters because you must not treat psoriasis as fungus and you must not treat fungus at all.
Athlete’s foot as a skin condition
Athlete’s foot is tinea pedis seen from the skin side. Signs: itching, burning, peeling, scale, redness, and moist cracking between toes; moccasin-pattern scale on the sole; sometimes blisters. Warm shoes, wet basins, and shared floors help it spread. Contagious.
Service: Refuse the pedicure. Do not rasp macerated toe webs. Do not share files, slippers, or a basin. 18VAC41-20-270 A 4 is the Virginia sentence: prevent transmission of communicable disease. After a refused service, the station and any item that touched the foot still follow disinfection rules if contamination occurred during inspection.
Do not tell the client to “dry better and come back this afternoon for polish.” Active athlete’s foot is a physician treatment problem. You may explain that you cannot place an infectious foot in salon water. You may not sell a salon antifungal protocol as if you were a clinic.
Hyperhidrosis: too much moisture
Hyperhidrosis is excessive sweating. On feet, shoes stay wet; on hands, nails stay moist under product. Sweat itself is not an infection. The risk is that constant moisture supports tinea pedis, Pseudomonas, and bacterial fold infections.
Signs: visibly wet palms or soles, odor from trapped moisture, macerated webs without a full fungal picture yet. Not contagious as a sweat disorder. Service adaptation: dry the skin thoroughly, do not seal wet nails under enhancements, shorten soak times, and stop if you also see fungus, green discoloration, or broken macerated skin. Hyperhidrosis plus onycholysis is a do-not-enhance pair. Extra powder, extra lotion, or extra product will not fix the sweat gland.
Anhydrous (dry) skin and the oil manicure
Anhydrous in this chapter means lacking water—dry skin and the dry, brittle nail that travels with it. Signs: tight, flaky hand or foot skin, hangnails/agnail, rigid plates, onychorrhexis (lengthwise splits). Causes: weather, solvents, repeated wash-and-dry, aging, and not using a supporting oil.
NIC sample theory teaching: oil manicures are recommended for brittle nails. That is the service you can offer when the plate is dry and brittle and the skin is intact and there is no infection or separation. Oil supports flexibility; it does not glue a diseased nail back to the bed and it does not authorize acrylic on eggshell plates.
Dry skin is not contagious. Do not confuse anhydrous skin with the white crumbly keratin of onychomycosis. Dry scale on intact heels may be part of a cosmetic pedicure; fissures that bleed are open sores (Section 6.4) and are a stop.
Service-or-stop table for skin of hands and feet
| Condition | Signs | Contagious? | Service or stop |
|---|---|---|---|
| Contact dermatitis | Red, itchy, burning skin or vesicles where product or gloves sit | No | Stop the product; refer if broken or severe; chemistry details in Chapter 7 |
| Eczema | Dry, itchy, cracked or oozing patches | No | Gentle service only on intact skin; refuse open or undiagnosed flares |
| Psoriasis of nails | Pitting, oil-drop/salmon patches, onycholysis, skin plaques | No | Refer; do not treat as fungus; no enhancement on involved nails |
| Athlete’s foot (tinea pedis) | Itch, scale, macerated toe webs, sole involvement | Yes | Refuse pedicure; refer |
| Hyperhidrosis | Excess sweat of palms or soles | No (sweat) | Dry thoroughly; do not seal wet nails; stop if infection or maceration is present |
| Anhydrous / dry skin | Flaky skin, hangnails, brittle splitting nails | No | Oil manicure for brittle nails if intact; no product on open fissures |
| Undiagnosed rash | Any unexplained red, scaly, vesicular, or annular patch | Unknown | Do not treat; refuse; refer |
Worked skin scenarios
A fill client’s eponychium is red and itchy on every enhanced finger, worse since you switched primers. Recognition: contact dermatitis from overexposure. Action: do not add more primer. Stop product on inflamed skin, document, discuss that a physician may need to evaluate allergy. Chapter 7 will name chemical roles; your job now is not to paint over dermatitis.
A pedicure client has ice-pick pits on several fingernails, a salmon-colored patch under one plate, and silvery plaques on the elbows she mentions in passing. Recognition: nail psoriasis picture, not onychomycosis. Action: no “fungus reduction,” no enhancement on separated psoriatic plates, refer.
A client wants gel because her nails “peel in layers” and her knuckles are paper-dry with hangnails, no redness, no pus. Recognition: anhydrous skin plus onychorrhexis / brittle nails. Action: oil manicure is the NIC-aligned service. Gel on peeling layers is still an enhancement on an unhealthy plate (270 F 2).
A client’s toe webs are white, wet, and fissured, and she is scratching during intake. Recognition: athlete’s foot. Action: no pedicure. Refer. Hyperhidrosis may be in the background; it does not make the infection cosmetic.
Boundary with later chapters
Chemistry (Chapter 7) owns ingredients, overexposure pathways, and adverse product reactions in more depth. Consultation (Chapter 8) owns the intake questions and documentation forms. This section owns the visual language of skin: dermatitis, eczema, psoriasis, athlete’s foot, sweat, and dryness. If you cannot name which picture you are seeing, you still know the default: do not treat an undiagnosed rash.
Several nails show ice-pick pitting and a yellowish-red oil-drop patch in the bed. The client also has silvery plaques on the elbows. What is the correct salon recognition?
A client’s nails are dry, rigid, and splitting lengthwise, and the surrounding skin is flaky but intact with no redness or pus. Which service matches NIC teaching?
A client presents for a pedicure with itching, peeling, macerated skin between the toes. What is the required action?
A technician notices redness, itching, and small vesicles along the eponychium on every finger that received a flooded gel application last week. Which condition and response are correct?