multiple itchy mosquito or insect bite wheals; red spots on the forearm of asian, chinese man

adult allergic allergy arm asian bite bites bitten bloodsucking chinese color dengue dermatology dot dots fingers forearm hand histamine insect irritated itch itchy lesions macule macules male man many mosquito multiple papules pruritus rash rashes reaction red redness round scratch scratches sensitive skin small spot spots sting upper wheal white