Grain itch

Grain itch
Synonyms	Grocer's itch, Copra itch
Pronounce	N/A
Specialty	N/A
Symptoms	Itching, Rash, Papules
Complications	Secondary infection
Onset	Acute
Duration	Self-limiting
Types	N/A
Causes	Mite infestation, specifically Pyemotes tritici
Risks	Handling grain, straw, hay, copra
Diagnosis	Clinical diagnosis
Differential diagnosis	Scabies, Contact dermatitis, Insect bites
Prevention	Avoidance of infested materials, Protective clothing
Treatment	Antihistamines, Topical corticosteroids
Medication	N/A
Prognosis	Good with treatment
Frequency	Rare
Deaths	N/A

Grain itch is a skin condition that is caused by the infestation of certain mites, specifically the Pyemotes species. These mites are often found in stored grain, straw, hay, and other dried plant material. The condition is characterized by intense itching and the development of red, raised bumps on the skin.

Causes

Grain itch is caused by the Pyemotes mite, a tiny arthropod that infests grain and other dried plant material. These mites are attracted to the moisture and warmth of stored grain, where they can multiply rapidly. When humans come into contact with infested grain, the mites can bite, causing an allergic reaction that results in intense itching and the formation of red, raised bumps on the skin.

Symptoms

The primary symptom of grain itch is intense itching, which can be severe enough to interfere with sleep and daily activities. The itching is often accompanied by the development of red, raised bumps on the skin, which can become inflamed and painful. In some cases, the bumps may blister and become filled with fluid. The symptoms typically appear within a few hours of exposure to the mites and can last for several days or even weeks.

Treatment

Treatment for grain itch typically involves the use of topical creams or ointments to relieve the itching and reduce inflammation. In severe cases, oral antihistamines or corticosteroids may be prescribed. It is also important to avoid further exposure to the infested grain or other source of the mites.

Prevention

Prevention of grain itch involves proper storage and handling of grain and other dried plant material. This includes keeping the material dry and cool to discourage mite infestation, and wearing protective clothing when handling the material to prevent direct skin contact with the mites.

See also

• Dermatitis
• Mites
• Skin conditions