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Erythema multiforme is a skin condition that can be caused by an infection or some medicines. It usually gets better on its own in 2 to 4 weeks.
The main symptom of erythema multiforme is a rash.
The rash usually appears on your hands and feet, and spreads to your tummy, chest, back or face. It might feel itchy or like it's burning.
The rash usually starts as round, slightly raised spots. Some spots develop rings around them and can turn into blisters.
Depending on your skin tone, the rash may be red, pink or purple, or it may be darker than surrounding skin.
Sometimes you can get the rash inside your mouth or on your lips, eyes, anus or genitals. This can be painful.
You may also have other symptoms such as:
It may be possible to treat the cause of your symptoms.
You think you have erythema multiforme and:
You can call 111 or get help from 111 online.
These may be signs of a serious reaction and may need immediate treatment in hospital.
Erythema multiforme usually gets better on its own in 2 to 4 weeks.
Sometimes, you may need:
Erythema multiforme is usually caused by an infection, such as the herpes simplex virus (which also causes cold sores) or a bacteria that causes lung conditions like pneumonia.
It can sometimes be caused by some vaccines or medicines such as non-steroidal anti-inflammatory drugs (NSAIDs), antibiotics, statins and medicines for epilepsy.
If it's caused by a medicine, you usually need to stop taking it. But do not stop taking any medicines without talking to a doctor first.
