Question 1. Is the itch localized?
Yes. The skin itch is probably a allergic reaction
to a irritating substance that came in contact with the skin, skin
injury, spider or bug bite, or one patch of dry skin. More
No. The skin itch is probably not generalized contact
dermatitis, or generalized irritant contact dermatitis (i.e. soap,
makeup), virus itch, or hives.
Question 2. Are there patches of itchy skin?
Yes. The skin itch is probably multiple bug or
spider bites, dry skin, or contact dermatitis: allergic substance
that comes in direct contacted the skin. More
No. The skin itch is probably not the result of
burn injury, head lice, generalized contact or irritant dermatitis,
or virus itch.
Question 3. Is the itch confined to the scalp or head?
Yes. The skin itch is probably head lice, a local
spider or bug bite, dry scalp itch, or localized allergic reaction
to shampoos or other irritating substances. More
No. The skin itch is probably not lice, virus itch,
skin injury (excluding sunburn), or a generalized allergic reaction.
Question 4. Is the skin dry or chapped?
Yes. The skin itch is probably a dry skin itch,
scalp itch, crusting or drying contact dermatitis, or healing skin
injury (i.e. sunburn) If skin is dry apply a high-quality moisturizer.
No. The skin is probably not dry skin itch, scalp
itch, localized contact dermatitis or healing skin injury.
Question 5. Were you recently ill?
Yes. Skin can itch in response to viral or bacterial
infections. Skin itch can also accompany chronic illnesses. If you
think you have been ill or are ill see a physician. More
No. The skin itch may or may not be directly related
to an illness. If in doubt see a physician.
Question 6. Does the skin look infected?
Yes. If the skin appears infected: is red, painful
to the touch, oozing, smells, is not healing, or has red streaks
radiating away from broken skin see a physician immediately. More
No. The skin itch is probably not infected and
should subside over time. Always monitor the skin for signs of infection.
If skin itch subsides and skin heals (symptoms improve) it is probably
Question 7. Do you feel sick? (nauseous, headache,
weak, fever, ache, stiff neck, short of breath, body ache)
Yes. See a physician immediately. More
No. It is probably not a major illness associated
with infection, or severe allergic reaction. If in doubt See a physician
Allergic Contact Dermatitis Itch
An allergy is a term that represents a reaction to a irritating
substance (allergen) by a select group of people and does not effect
others who are not allergic to it. Small quantities of an allergen
are necessary to create a allergic reaction. Contact allergic dermatitis
usually occurs from a allergen in contact with the skin rather than
internally produced. The first contact does not result in allergy;
often the person has been able to touch the material for many years
without adverse reaction.
Allergic contact dermatitis is an itchy skin condition caused by
an allergic reaction to a substance or material in contact with
the skin. It typically reacts several hours after contact with irritant
and calms down over some days assuming the skin is no longer in
contact with it.
Allergic contact dermatitis is different from irritant contact
dermatitis caused by skin contact with irritating substances. Common
irritants include soaps, detergents, solvents, acids, alkalies,
and other chemicals. Irritant contact dermatitis can affect anyone,
assuming they have had enough exposure to the irritant.
Features of Dermatitis Itch
Dermatitis is generally restricted to the area of contact with
the allergic substance, however severe cases may become generalized
beyond the original contact area. Allergic irritants, like poison
ivy or oak can be spread to other areas of the body by touch. It
is unlikely that dermatitis exists if the affected skin area is
not reactive to an known irritant. Affected areas will be red, swollen,
blistered, dry, bumpy, or itchy.
Examples of Dermatitis Itch
- Reaction to the wrist strap of a watch due to contact with a
allergic substance nickel.
- Reaction to rosin in an adhesive plaster or wrap from a leg injury.
- Reaction to rubber or latex gloves.
- Reaction to hand moisturizer or makeup.
- Reaction to soap, shampoo, laundry detergent.