Corn

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Written by Zhang Da Wei
General Surgery
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The difference between corns and calluses

Corn and calluses have obvious differences, as these two conditions arise from different mechanisms. Corns are what we commonly refer to as ordinary warts, which are caused by viral infections. Such viral infections are typically related directly to a decline in one's immune system, leading to the disease. The usual presentation is a change on the surface of the skin, generally appearing as tumor-like. On the other hand, calluses do not protrude on the surface and are mostly caused by local pressure and other similar factors. This condition has little to do with viral infections. Nevertheless, the treatment methods for these two conditions are quite similar. For example, they can be removed through laser surgery or treated using certain ointments to achieve healing effects. (The use of medications should be guided by a doctor.)

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Written by Liu Gang
Dermatology
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How can corns be treated to be eradicated completely?

Corns are growths formed by the entry of foreign bodies into the skin, which become exacerbated by repeated friction and compression. There are many treatments for corns, and the most conventional one involves the application of corn plasters, which can completely cure the condition. Corn plasters are a type of corrosive medication. After local application, they completely erode the corn. However, in some patients where the corn is particularly deep or large, corn plasters may not be able to cure it completely. In such cases, it is advisable to visit a dermatologist at a reputable hospital and opt for liquid nitrogen freezing treatment. Following liquid nitrogen treatment, blisters form locally, and as these blisters peel off and necrotize, the corn also falls off and dies. If these treatments are not effective, one can consult a surgical department for a surgical procedure to completely excise the corn.

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Written by Huang Ling Juan
Dermatology
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Why do corns keep increasing in number as they grow?

Corns growing in number and size is usually linked to wearing tight shoes and compression. They are also related to localized friction and irritation. Another possibility to consider when corns multiply is an infection caused by human papillomavirus resulting in plantar warts, which are similar in appearance to corns. Plantar warts are somewhat contagious and can also arise when the immune system is weakened. If your corns are increasing in number, it is important to promptly visit a dermatologist at a reputable hospital. Once a clear diagnosis is made, appropriate treatment options may include carbon dioxide laser therapy or cryotherapy using liquid nitrogen. If you are experiencing frequent corns, it is essential to wear loose-fitting shoes with soft soles, minimize walking, and avoid sitting for long periods.

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Written by Huang Ling Juan
Dermatology
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At what stage should a corn plaster be considered effective?

When applying corn plaster, it is essential to apply it until the area of the corn turns white, remove the white callus, and then continue to apply the plaster. Keep applying until the surrounding skin no longer turns white, leaving only the protruding corn. Once the root of the corn has also necrotized, it can be pulled out from the root. If there is still pain when pulling out the corn, continue using the medication. When the dead skin on the corn turns white, clean, with clear lines, and the newly exposed tender skin is smooth, clean, with clear lines, and there is no pain when pressed, this condition indicates recovery. Corns generally occur due to prolonged pressure on the foot or wearing tight shoes, causing sustained pressure and friction over time.

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Written by Huang Ling Juan
Dermatology
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What will a worsening corn turn into?

Severe deterioration of corns usually affects walking. When corns appear, treatment options include using corn ointment, choosing carbon dioxide laser treatment, or cryotherapy with liquid nitrogen. Corns mainly result from prolonged compression and friction of the soft tissues of the sole, leading to this skin condition and causing localized pain. If corns develop, it is important to rest and avoid standing or walking for long periods. Also, avoid wearing shoes with very hard soles to prevent the recurrence of corns. When dealing with corns, soaking the feet in warm water to promote blood circulation and prevent the thickening of the skin can be beneficial. Diet-wise, it is advisable to choose low-fat foods.

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Written by Zhang Da Wei
General Surgery
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Can corn plasters be used for warts?

Warts are commonly caused by a viral infection and are a type of common wart. These warts can be removed or improved through physical treatments or medications, such as laser or cryotherapy. Using corn plasters can also be effective in these cases. Because the affected area is stimulated, there might be a noticeable change. If this change can be effectively managed, it can lead to successful treatment. Corn plasters can achieve this therapeutic effect. Although corn plasters are not highly specific, they do have some therapeutic effects. Furthermore, it is advisable to enhance the immune system. Specific antiviral treatments can be more effective and can be combined with other methods to judge and treat the condition. (Medication should be used under the guidance of a professional doctor.)

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Written by He Zong Quan
General Surgery
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What should I do if a splinter in my hand that wasn't removed has grown into a corn?

It is common for an unremoved splinter in the hand to eventually turn into a corn. This occurs because if the splinter is not removed, it causes the body's tissues to reject the foreign object. This rejection leads to the formation of local tissue scars around the splinter, which can subsequently develop into a lump that resembles a corn. As long as the splinter remains in the body, the lump and scar will not disappear. Therefore, surgical intervention is necessary to excise the scar tissue formed under the corn to ultimately heal this condition.

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Written by Liu Gang
Dermatology
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What causes corns on the soles of the feet?

Corns are mostly caused by the prolonged and repeated friction and compression of a foreign object that has entered the skin, resulting in a hyperproliferative lesion. They are generally small and can be completely treated with common corn ointments. However, if a corn has been present for a long time and has grown larger, it is recommended to seek treatment at a formal hospital's dermatology department using the method of liquid nitrogen freezing, which usually resolves the issue in one or two sessions. Some corns can become larger and may be painful or show signs of inflammation and infection. In such cases, it is advisable to visit a surgical or dermatology department for a minor minimally invasive surgery to completely remove it. When wearing shoes, it is essential to choose loose and soft-soled footwear, and avoid walking barefoot on surfaces to prevent foreign objects from entering and causing the recurrence of corns.

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Written by He Da Wei
Dermatology
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Why do corns form on the feet?

Corns on the feet are caused by long-term compression or friction, leading to excessive proliferation of the stratum corneum and thickening of the stratum corneum. Corns commonly occur in adults, particularly in women, and are frequently found on pressure-bearing areas such as the feet, soles, the inner edges of the big toe, the outer sides of the little toes, as well as the heels and tips of the toes which are areas of friction and pressure. The skin lesions are clearly defined, either light yellow or deep yellow in color, shaped like a cone with a smooth and slightly raised surface. Because they compress the peripheral nerves in the dermis, walking or when pressure is applied, the pain is quite noticeable.

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Written by Liu Gang
Dermatology
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Corns are formed by the thickening of the skin in response to pressure and friction.

Corns are primarily caused by the prolonged and repeated irritation from foreign objects entering the skin, and they are also somewhat related to one’s walking habits or footwear. Once formed, they can be painful, and in severe cases, may lead to pus-filled infections. Typically, corns can be effectively treated with common corn plasters. If the treatment with corn plasters proves ineffective, one can seek cryotherapy with liquid nitrogen at a dermatology department in a standard hospital. In more severe cases, surgical removal may be necessary. Generally, corns can be completely cured using these methods. It is advisable to wear loose-fitting shoes regularly, avoid tight shoes that compress the feet, and not walk barefoot to prevent foreign objects from re-entering the skin and causing a recurrence of the condition. (Use medication under the guidance of a doctor.)