Dermatitis is mostly caused by allergies, and there are many allergenic factors that can trigger dermatitis. For example, frequently consuming spicy and irritating foods, often staying up late, or having low immunity. Some patients may also develop dermatitis due to allergies to pollen or dust mites. If it is photodermatitis, it may be somewhat related to the strong ultraviolet rays in the summer. Patients with this type of dermatitis often experience flare-ups in the summer and natural relief during the autumn and winter seasons, which is considered seasonal dermatitis. In such cases, it is essential to avoid prolonged sun exposure in the summer, apply sunscreen generously, and take proper sun protection measures. Doing so can gradually alleviate the condition. Additionally, taking some anti-allergic medications orally, such as loratadine tablets, might be appropriate. If the itching is severe, topical corticosteroid creams can be applied.