itching

blister(s) or bump(s) on hand(s), itching, lump(s) in skin, puffy face

blister(s) or bump(s) on skin, itching, rash, redness in skin

Atopic dermatitis, sometimes called eczema, is a kind of dermatitis, an atopic skin disease. Atopic dermatitis afflicts humans, particularly young children; it is also a well-characterized disease in domestic dogs. ... 

itching, redness on foot (feet), redness on toe(s), scaly patches on skin

Athlete's foot or tinea pedis is a fungal infection of the skin of the foot, usually between the toes, caused by the pathogen fungi. ... 

blister(s) or bump(s) on skin, itching, lump or swelling on leg(s), lump(s) in skin

blister(s) or bump(s) on skin, itching, lump(s) in skin, rash

Urticaria or hives is a relatively common form of allergic reaction that causes raised red skin welts. Urticaria is also known as nettle rash or uredo. These welts can be 5 mm (0.2 inches) in diameter or more, itch severely, and often have a pale border. Urticaria is generally caused by direct contact with an allergenic substance, or an immune response to food or some other allergen. Hives can be caused by stress. ... 

blister(s) or bump(s) on skin, itching

Bedbugs (or bed bugs) are small nocturnal insects of the family Cimicidae that live by hematophagy, feeding on the blood of humans and other warm-blooded hosts. ... 

itching, painful sex in females, painful urination in females, vaginal or vulvar itching or irritation

Candidiasis, commonly called yeast infection or thrush, is a fungal infection of any of the Candida species, of which Candida albicans is the most common. ... 

blister(s) or bump(s) on skin, itching, rash, redness in skin

Contact dermatitis is a term for a skin reaction resulting from exposure to allergens or irritants. Phototoxic dermatitis occurs when the allergen or irritant is activated by sunlight. ... 

puffy face, stomach pain, upper abdominal pain, vomiting

blister(s) or bump(s) on skin, itching

Flea is the common name for any of the small wingless insects of the order Siphonaptera (some authorities use the name Aphaniptera because it is older, but names above family rank do not follow the rules of priority, so most taxonomists use the more familiar name). Fleas are external parasites, living by hematophagy off the blood of mammals and birds, and genetic and morphological evidence indicates that they are descendants of the Scorpionfly family Boreidae, which are also flightless; accordingly it is possible that they will eventually be reclassified as a suborder within the Mecoptera. In the past, however, it was most commonly supposed that fleas had evolved from the flies (Diptera), based on similarities of the larvae. ...