Hello, from the situation you described, it is generally caused by allergic dermatitis. This disease is related to allergic constitution, mainly manifested as itching and easy to repeat. Is not a sign of water shortage. Pay attention to keep the local area clean and hygienic, and avoid scratching and contact with allergic substances. Fluoxetine ointment can be used for external treatment.

The main symptoms of allergies are redness, swelling, itching, dryness, peeling, tightness, pimples and little red dot. Allergic skin is mainly thin stratum corneum, and it will be allergic to external stimuli. Computer radiation, seasonal changes, irritating cosmetics and ultraviolet rays can all cause skin allergies. After skin allergy, don't eat spicy food, don't use cosmetics, stay away from computer radiation, and use desensitizing skin care products containing plant ingredients, which will not bring burden to the skin. It can also replenish water to the skin while desensitizing.

This situation usually occurs after skin injury, and it is not sure that it is a sign of water shortage. Don't treat it with moisturizing cream. You can treat it with aloe gel first. If the allergy is not cured, you can take anti-allergic drugs such as Kairuitan and chlorpheniramine. If the skin is itchy, you can use compound zinc oxide ointment and other drugs. You can also go to a dermatologist for examination, use drugs according to your condition, pay attention to skin hygiene, avoid spicy food, and stop using cosmetics and skin care products. The exact time depends on the condition.