1.

An itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs.

HIVES

2.

Any red eruption of the skin.

RASH

3.

Small rounded protuberance, a firm abnormal elevated blemish on the skin; caused by a virus.

WART

4.

Abnormal protuberance or localized enlargement.

LUMP

5.

An injury that doesn't break the skin but results in some discoloration.

BRUISE

6.

A disorder of digestive function characterized by discomfort or heartburn or nausea.

INDIGESTION