4.3 Skin Diseases and Disorders

Skin diseases and disorders are the third Histology of the Skin bullet on the HLO Barbering bulletin (8 of 100 theory items). The exam trap is the same one as in hair histology: a disorder may be an abnormal but non-infectious change you can work around; a disease, especially an infectious one, can spread on razors, towels, and hands. ORS 690.005(2) says barbering is for cosmetic purposes and not for medical diagnosis or treatment of disease or physical or mental ailments. OAR 817-120-0005 still makes you responsible for deciding whether a service would be prohibited, unsafe, dangerous, or harmful. Translate textbook language into Oregon practice: name the lesion in observation words, do not assign a physician's diagnosis as if you were one, stop when the skin is contagious, open, or undiagnosed, and adapt only when the skin is intact.

HLO sources (Milady 5th edition; Pivot Point 112B) expect the lesion vocabulary below. Learn the picture, not a Latin flourish you cannot apply to a beard.

Primary lesions

Primary lesions are first-change marks on previously normal skin:

Secondary lesions

Secondary lesions develop from a primary lesion or from scratching, infection, or healing:

If you remember only two pairs for the 8-question block, remember vesicle versus pustule (clear fluid versus pus) and crust versus scale (dried exudate versus dry plates). Herpes is a vesicle problem. Impetigo is a crust problem. Acne on the beard line is often a papule-then-pustule problem.

Barber-relevant conditions

Acne is inflammation of the sebaceous follicle: comedones (blackheads and whiteheads), papules, and pustules. It is not a disease you cure with a closer shave. Do not extract, lance, or apply a medical peel. On intact, non-pustular skin you may cut and shave around lesions. On a face covered with open pustules, you stop.

Folliculitis barbae is infection of beard follicles, often with a bacterial (textbook Staphylococcus) picture: red follicular pustules in the shave area. Shaving through it drives microbes down the ostium. Stop, do not share the razor, follow OAR 817-010-0008 hand washing, treat tools as soiled under OAR 817-005-0005 until cleaned and disinfected, and refer.

Pseudofolliculitis barbae (PFB) is ingrown beard hair. Tightly curled shafts, extra-close shaves, against-the-grain outlining, and stretching the skin let the tip re-enter the wall of the follicle or pierce nearby epidermis. The client feels bumps; you see papules that can secondarily pustulate. PFB itself is not a fungus. It is a mechanical problem your shave created or worsened. Adapt: leave more length, shave with the grain, do not stretch, consider a single-blade pass, and stop if the area is pustular, spreading, or scarring. Refer stubborn or infected ingrowns. Do not pick hairs out of inflamed skin with a soiled tweezer and call it treatment.

Herpes simplex (cold-sore picture) presents as a cluster of vesicles on or near the lip, then crusts. It is contagious, including on a straight razor and on your unwashed hands. Do not shave over an active vesicle. Do not finish "just the rest of the face" with the same unwashed blade that nicked the lesion. Stop in the involved area, explain that you cannot service an open, contagious blister, refer, wash, and disinfect. Prodromal tingling the client mentions is a warning; a weeping cluster is a hard stop.

Impetigo is a highly contagious bacterial infection, often around the nose, mouth, and beard line, with honey-colored crusts. Textbook organisms are staphylococcal or streptococcal. This is not "dried shaving cream." Stop the service, refer, and follow Division 10 infection control. Serving that client is an unsafe service under OAR 817-120-0005.

Eczema and dermatitis are inflammatory pictures: redness, itch, scale, sometimes vesicles or fissures. Contact dermatitis can follow a new aftershave, dye, or nickel. You do not diagnose atopic versus contact versus seborrheic disease. You stop a product that is burning, you do not shave through broken skin, and you refer undiagnosed, weeping, or spreading rashes. A mild, intact-skin dryness after shampoo is a cosmetic moisturizer problem. A raw, oozing cheek is not.

Skin cancer warning features — refer, do not diagnose

Oregon barbers see moles every day. You are not a dermatologist. You are the person who looks at the cheek under bright light before a razor pass. Use the ABCDE reminder as a referral trigger, not as a diagnosis of melanoma:

• Asymmetry — one half does not match the other.
• Border irregularity — ragged, notched, or blurred edge.
• Color variation — more than one color, or a very dark uneven tone.
• Diameter — larger than about 6 mm (pencil eraser) is a classic teaching cutoff; any growing lesion still matters.
• Evolving — the client says it changed in size, shape, color, or sensation (itch, bleed).

A lesion that meets those warnings, bleeds easily, or sits in the shave path is not something you shave through to "clean it up." You do not apply a peel. You do not tell the client "you have melanoma." You say you will not put a blade on that spot, you recommend a physician, and you record what you observed if your facility keeps notes — without writing a medical diagnosis. Basal cell and squamous cell textbook pictures (pearly papule, non-healing sore, scaly patch) are the same rule: observe, avoid, refer.

Cosmetic versus medical, stop versus adapt

ORS 690.005(2) is the bright line. Cosmetic: a close shave on intact skin, a facial cream on intact skin, adapting length for ingrowns, skipping a nick-prone mole. Medical: diagnosing herpes, treating impetigo, lancing pustules, chemical peels into spinosum or basale, galvanic "disinfection," promising to cure acne or cancer. OAR 817-120-0005(2)–(4) requires you to safeguard the public and warns that prohibited, unsafe, dangerous, or harmful services can be incompetence, negligence, or unprofessional conduct under ORS 676.612(2)(j).

Refuse or stop when you see an active vesicle, honey-colored crusts, pus you would have to shave through, an undiagnosed ulcer, a spreading rash, or a changing mole in the tool path. Adapt when the skin is intact and the issue is ordinary acne papules you can work around, calm ingrowns that improve with length, or a stable, unchanged macule you can shave around. OAR 817-010-0008 still requires thorough hand washing immediately before and after each client, and gloves when the procedure routinely involves blood or other potentially infectious materials.

Eugene shop scenario. During a consultation you see a cluster of clear vesicles on the vermilion of the lip and honey-colored crusts at the right naris. The client wants a straight-razor shave "to look clean for court tomorrow." That is a herpes-type vesicle plus an impetigo-type crust until a physician says otherwise. You do not shave. You stop, explain that you cannot service a suspected contagious condition, refer, wash your hands, and take every implement that touched the face out of service as soiled. A second client has a few closed papules on the jaw and a long-stable flat freckle on the cheek. Skin is otherwise intact. You shave around the papules, do not extract them, note that the freckle is unchanged, and finish. Same certificate, two different Oregon answers.