Pig eczema is highly prevalent in summer, and farmers must take strict precautions

Pig eczema, also known as pig damp-toxin disease, is mainly caused by pigs living in a damp environment for a long time. It is generally most severe during the high-temperature seasons of summer and autumn.

Symptoms: affected pigs mostly develop the disease suddenly; at the beginning, the skin under the jaw, on the abdomen and on both sides of the perineum turns red, with broad bean-sized nodules appearing, and the pigs are restless due to itching. As the condition worsens, blisters and papules appear, and after they rupture they are often accompanied by yellow exudate, scabs and scales. If acute cases are not treated in time, they often become chronic, with the pig's skin becoming thick and rough and itching, and the pigs often rub against walls or trees to relieve the itching, leading to loss of hair over the whole body. Local infection, erosion or suppuration often occur, and finally the pigs become emaciated and weak and die.

Prevention: During high-temperature seasons, do not accumulate manure inside the pig house; clean the pig pen frequently, keep the house clean and dry, prevent rain leakage in the pen, and dry the bedding straw in the sun frequently. In places with high humidity, some lime can also be spread to remove moisture.

Treatment: 1. For the treatment of acute damp-toxin disease, calcium chloride or calcium gluconate 10-20 ml can be injected intravenously, while orally administering vitamin A 5000 international units, and vitamin C and compound vitamin B 0.5-2 ml each; if necessary, adrenaline 0.5-1.5 ml can be injected; for affected areas with redness and papules, ichthammol 1 g, salicylic acid 1 g and zinc oxide ointment 30 g can be mixed and applied by smearing once daily; when there is a large amount of exudate from the affected area, a 3%-5% gentian violet alcohol solution can be applied, or an equal-part mixed powder of boric acid and tannic acid can be sprinkled on.

2. Treatment of chronic damp-toxin disease: safflower 9 g, angelica 15 g, codonopsis 14 g, Atractylodes 9 g, peach kernel 9 g, raw astragalus 15 g, poria 9 g, red peony 12 g, salvia 15 g, decoct in water, remove the medicinal residue, then mix a small amount of concentrated feed and feed it to the affected pigs; for external washing treatment, first wash the affected area clean with soapy water, then apply 10% sulfur coal tar ointment; if the affected area of the pig has suppurative infection, first clean it with 0.1% potassium permanganate solution or 0.3% furacilin solution, then apply iodine tincture or sprinkle anti-inflammatory powder. If the affected area has scabs and accumulated scales, first rinse it clean with 3% hydrogen peroxide, then apply ichthammol ointment.