How long does it take for a rash from an allergic reaction to go away

• 1: White skin with hives rash.
• 2: White skin with hives rash.
• 3: Hives rash on light brown skin.
• 4: Hives rash on light brown skin.
• 5: Hives rash on light brown skin.
• 6: Dark brown skin with hives rash.

Detailed image description image 1.

This image shows white skin with the hives rash. The rash is on a child's leg and hand. Their groin, in the top left of the photo, is not affected by the rash.

The skin on most of their thigh is pink, raised and bumpy. At the side of their thigh are deep creases in the skin.

Their hand is pink with some red patches between their thumb and finger and at their fingertips.

Detailed image description image 2.

This image shows white skin with the hives rash on the leg, arm and hand. The person wears a black T-shirt, at the top of the image.

Small, slightly raised, pink spots cover their leg. Some spots are close to others and some are further apart.

The same spotty rash spreads along the edge of their arm and across the top of their hand. Their knuckles and fingertips are red.

Detailed image description image 3.

This image shows light brown skin with the hives rash.

There are many skin-coloured bumps around a person's knee. The bumps vary in size from around 2mm to 1cm. The larger bumps look like blisters. Some bumps are very close together in groups. The skin is slightly darker brown where the rash is.

Detailed image description image 4.

This image shows light brown skin with a hives rash. There are about 40 raised bumps of different shapes and sizes across a person’s cheek and neck.

In the lower left of the photo is the person's yellow T-shirt and black necklace.

Some of the bumps are small circles and others are larger, uneven shapes. Most of the bumps are close together in groups, but some are further apart. The bumps are a lighter brown than the person's skin and look puffy, like blisters.

Detailed image description image 5.

This image shows light brown skin with the hives rash covering large areas of a child's legs, tummy and arm.

There are about 20 large patches of pink skin in irregular shapes and sizes spread across the body. The patches are mainly flat and vary in size from around 1cm to 8cm.

Some patches are bright pink and others are lighter pink with a darker edge around the patch. At the top of the thigh and side of the tummy the rash is more spread out with smaller pink spots surrounding the patches.

Detailed image description image 6.

This image shows dark brown skin with the hives rash on the thigh.

There are many raised patches of skin in different shapes and sizes very close to each other. They range from small round bumps around 5mm in size to larger bumps around 5cm in size with an uneven shape.

The skin near the left knee also has raised lines, like scars. The skin on the inside of the thigh is smooth.

The rash is the same colour as the person's skin.