Causes of skin allergies

Written by Zhu Zhu

Dermatology

Updated on September 21, 2024

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The causes of skin allergies are mainly related to exposure to allergens, and different people have different allergens. For some, it might be medications, for others, it could be foods, and for some, environmental factors might be the allergens. Regardless of the type of allergen, it is necessary to actively conduct examinations and identify the causes, while also treating the skin allergy promptly.

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Written by Qu Jing

Dermatology

1min 27sec

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What should I do if I have skin allergies and itching?

Skin allergies and itching require actively searching for the triggering factors, i.e., allergens. Identifying what has irritated the skin and caused the allergic reaction is crucial, then avoiding further contact to prevent recurrence or worsening of the condition. If the allergy is triggered by consuming fish, shrimp, seafood, tropical fruits, etc., it is important to avoid eating similar foods in the future. If the use of certain cosmetics or skin care products causes allergies, avoid using other products containing the same ingredients. If the allergy is caused by certain medications, typically appearing within four days to a month of usage, it is advised to switch medications and avoid taking the same one again. For more severe allergic symptoms, such as significant itching, oral antihistamines like loratadine, desloratadine, cetirizine, and ebastine can be taken. Topical anti-itch medications like calamine lotion can be used, and for more severe conditions, topical corticosteroids or tacrolimus ointment can be applied. If symptoms do not improve or worsen with the aforementioned treatments, short-term oral steroids might be considered to manage the condition. (Note: Medication should be used under the guidance of a physician.)

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Written by Zhu Zhu

Dermatology

25sec

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Symptoms of skin allergies

Skin allergies are very common, and their main symptoms include itching, rashes, or changes in skin color. One of the more common symptoms of skin allergies is itching, which in some patients may be so severe that it makes it hard to sleep. Another symptom is developing rashes. It is important not to scratch the rashes with hands, as breaking the skin can lead to secondary bacterial infections.

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Written by Zhu Zhu

Dermatology

28sec

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Can you eat fish if you have a skin allergy?

Skin allergies are primarily caused by contact with allergens, resulting in skin conditions. Fish, being a stimulating food with a strong smell, belongs to the category of irritants. Therefore, it is best to avoid eating fish during an allergic reaction period as it might worsen the skin allergy. During this time, it is preferable to consume foods that aid in digestion and are lighter, such as vegetables.

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Written by Zhu Zhu

Dermatology

36sec

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What should I do if a skin allergy leaves scars?

After skin allergies are healed, scarring is possible, which is related to individual physique, especially for people prone to scarring; the likelihood of scarring is very high. If scars do appear, it is recommended to apply some scar-removal ointments. If the effect of the topical scar ointment is not satisfactory, you can also visit the dermatology department of a local reputable hospital for treatments such as laser or other physical therapy methods. It is important to avoid direct sunlight and prevent injuries in daily life.

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Written by Xie Ming Feng

Dermatology

45sec

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Can people with skin allergies eat persimmons?

Patients with skin allergies can generally eat persimmons. Persimmons are cold in nature and sweet in taste. From the perspective of Chinese medicine, persimmons have the effects of clearing heat, transforming phlegm, moisturizing the lungs, and stopping coughs. Clinically, it is very rare to see patients who are allergic to persimmons. Therefore, in general, people with skin allergies can eat persimmons. However, persimmons should not be eaten in excess or on an empty stomach, as they may form indigestible hard masses in the stomach, which are not conducive to digestion and elimination, leading to the so-called persimmon bezoar syndrome. This condition can cause stomach bleeding and gastric perforation in patients with gastric ulcers.