In summer, I have red spots on my hands that are very itchy. There is water when squeezed out. There is a small transparent dot between the fingers. It is very itchy, not like the ones on the arms.

Summer dermatitis is most commonly considered. Summer dermatitis is a seasonal, inflammatory skin disease caused by high temperatures in summer. Most of them are related to sustained high temperature, muggy heat, and high humidity. It occurs more commonly in adults, more commonly in women, and often affects the flexors of the limbs and trunk, especially in the bilateral pretibial areas, with symmetrical distribution. At the initial stage, there are pinhead-sized erythema and papules, and then papules and herpes appear. Conscious itching, scratches, blood scabs, skin hypertrophy and pigmentation were seen after scratching, but no erosion or oozing. It will subside when the weather cools down. The main treatment is ventilation and cooling. You can use local cooling and antipruritic agents such as calamine lotion, or weak glucocorticoids such as 1% hydrocortisone. In severe cases, oral antihistamines such as cetirizine can be used.