There are several different types of hives, these include:
Acute urticaria: These are hives that last less than six weeks. Its causative agents are infections, medications, and certain foods. Insect bites and internal diseases, however, may also cause this type of urticaria.
Drugs such as aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen and naproxen, antihypertensives, and opiates can cause hives and angioedema.
Chronic urticaria and angioedema: As the name implies, these are hives that last for more than six weeks. In most cases, the causative agent/s may be impossible to identify. Symptoms include muscle soreness, vomiting and diarrhea, and shortness of breath.
Physical urticaria: When the skin undergoes direct physical stimulation e.g. exercise, sweating, pressure, vibration, sun exposure, heat, and cold, it causes hives. At the site of stimulation, hives usually occur. Most of the hives appear one hour after exposure to the stimulus.
Dermatographism: It is a form of urticaria wherein it occurs whenever you stroke or scratch your skin.
Other common types of leg ulcer include:
- Arterial leg ulcers
- Diabetic leg ulcers
- Malignant leg ulcers
- Traumatic leg ulcers
- Vasculitic leg ulcers
Ulcers in the foot are usually caused by diabetes.
Itching, pain, and swelling in the affected leg are characteristic symptoms of a venous leg ulcer.
Discoloration, hardening of the skin around the ulcer, and presence of a foul-smelling discharge may also be present when you have a venous leg ulcer.
If you have a venous leg ulcer, you may exhibit the following conditions:
- discoloration and darkening of the skin around the ulcer
- swollen ankles
- red, flaky, scaly and itchy skin on your legs
- swollen and enlarged veins on your legs
- hardened skin around the ulcer, which may make your leg feel hard
- a heavy feeling in your legs
- an unpleasant and foul-smelling discharge from the ulcer
- aching or swelling in your legs
Signs of an infection
Opportunistic pathogens could cause secondary bacterial infections due to the ulcer.
Symptoms of an infected leg ulcer may include:
- a green or unpleasant discharge coming from the ulcer
- redness and swelling of the skin around the ulcer
- worsening pain
- an unpleasant smell coming from the ulcer