I. Juvenile spring rash
Manifestation: After sun exposure in early spring, the ear often itches and erythema occurs rapidly on the auricle. The characteristic manifestation is the appearance of clustered edematous papules or macules within 12 to 14 hours after the onset of erythema, most of which are topped by small blisters. The rash fades on its own within a few days to a few weeks and appears scaly but not atrophic, and can recur every spring. The damage is mostly confined to sun-exposed areas of the ears, and similar rashes may also appear on the backs of the hands and fingers in individual patients. The disease can occur in conjunction with other solar dermatoses and is most often complicated by polymorphic heliotrope.
Causal analysis: It may be due to the combined effect of sunlight and cold air.
Special Note: Most commonly seen in boys aged 5-12 years, less frequently in girls due to long hair covering the ears. The incidence is higher in children with white skin who are more sensitive to sunlight. The disease can recur for several years, so people who have had the disease before should take precautions.
Treatment guidelines: The recurrence of the disease cannot be prevented with shading agents, internal nicotinamide is effective, and local application of corticosteroids can stop the itching.
Second, seasonal contact dermatitis
Performance: This is a pollen-induced skin disease that occurs repeatedly with the change of seasons, especially in the spring when the flowers bloom, but also better in the fall when the leaves fall. The rash is mostly confined to the face and neck, showing mild erythema, edema, slightly elevated or accompanied by a few red edematous papules half the size of a grain of rice; some show erythema around the eyes or neck, edema is not obvious; some can also show eczema-like changes, mild mossy rash (i.e. thickened skin, rough and uneven), sometimes with bran-like scales. Patients often feel itchy, recurring every year but can subside on their own.
Causal analysis: Pollen dispersed in the air can cause allergic reactions in the body.
Special reminder: women are more likely to suffer from this disease.
Treatment guidelines: If pollen allergy is identified, avoid contact as much as possible. If the non-facial lesions show mild redness and papules without exudate, topical stove glycolic lotion can be used, to which appropriate amount of phenol, camphor or menthol can be added to stop itching. When the lesions show eczema-like changes, such as mild mossiness, can be applied topically with 2% to 5% furfuryl distillate and other tarry distillate emulsions or pastes, and can also apply corticosteroid creams. If the patient itches intensely, can take antihistamines and vitamins internally.
Facial reoccurring dermatitis
Performance: It occurs in spring. The lesions begin around the eyelids and gradually expand to the cheeks and front of the ears, sometimes involving the entire face, with mildly limited erythema, fine bran-like scales, sometimes mild swelling, but never papules, blisters, and no maceration and mossiness. The rash may occur on the neck, but not on the trunk, limbs, etc. The rash is sudden, itchy, and fades within a week or so, but can recur, and may be pigmented when repeatedly recurring.
Causal analysis: It may be related to allergy or stimulation by cosmetics, warmth, light stimulation, dust, pollen, etc. Ovarian dysfunction, habitual constipation, autonomic dysfunction, mental stress and fatigue, digestive dysfunction, as well as B-vitamin and vitamin C deficiency and anemia may also be factors in the development of this disease.
Special reminder: It is mostly seen in women aged 30 to 40 years old, and can also occur in women and men of other ages.
Treatment guide: wash your face after going out, do not use irritating or allergic cosmetics and strong alkaline soap, do not eat irritating food, use simple non-irritating fragrant cream externally, and also take B vitamins and vitamin C internally.
Fourth, white furfur (some people call “peach fungus”)
Performance: Generally occur more in spring, summer and autumn after gradually fade. Mainly is hypopigmented round or oval patches, light white or light red. The lesions are usually found on the face, but also on the upper arms, neck, and shoulders. The patches vary in size and are covered with a small amount of fine scales. Some patients may have mild itching, which may subside on its own after a few months or longer.
Causal analysis: The cause is unknown, but it can occur in people with dry skin after strong sunlight exposure.
Special reminder: It is a common disease in children, and some young people can also develop it, with no difference in incidence between men and women.
Treatment guidelines: internal B vitamin complex, local lesions rubbed with 5% sulfur ointment or corticosteroid cream.