After experiencing a skin allergy, there are many aspects that need attention. First, it is crucial to identify the cause of the skin allergy. Once the cause is identified, one must avoid further contact with the allergen. Secondly, if a skin allergy has already occurred, it is necessary to use some anti-allergy medications for treatment. Thirdly, it is best to avoid eating foods that can easily trigger skin allergies, such as sea fish, shrimp, and crab. Additionally, it is important to always focus on strengthening one's immune system and maintaining a light diet.