Duration

The rash after fever caused by viral or bacterial infection usually disappears after a few days. If the rash is caused by a drug allergy, it will disappear even after a few days after stopping the drug. In the case of shingles, the duration of the rash can vary greatly, as it depends on the immune system of the person affected.

Thus, if the immune system is strong, the rash can disappear after one to three days. However, if it is an elderly person whose immune system is very weak, the rash can last for several weeks. The rash in rheumatic fever can occur continuously or in relapses. It disappears again after weeks or months.

Adult rash and fever

Adults can theoretically get skin rash after fever from all the diseases mentioned above. Often the painful rash with blisters and only unilateral skin rash is caused by reactivation of the chickenpox virus. This leads to the clinical picture of shingles.

This reactivation is particularly likely in cases of immune deficiency, which can also be triggered by stress. A drug intolerance does not necessarily have to occur in childhood and is therefore also possible in adulthood if a drug to which no previous reaction was observed is taken again.The skin rash after fever, which is caused by the intake of antibiotics (skin rash after antibiotics), usually occurs in young adulthood. Three days of fever, scarlet fever and measles occur more frequently in children, but adults can also be infected with these diseases. Also the rheumatic fever occurs extremely rarely in the adult age and has its illness summit rather between the 3. and 16. year of life.

Childhood rash and fever

Children can also develop skin rashes after fever due to almost all the diseases mentioned so far. However, certain diseases are also more frequent and therefore more likely in children. If, for example, there is no recommended measles vaccination at a young age or if it is not administered frequently enough, children of all ages can develop measles.

However, since it is common to administer this standard vaccination together with the vaccinations against rubella, mumps and chickenpox, the disease does not occur as frequently. Scarlet fever peaks in children between four and ten years of age. Ringed rubella also occurs more frequently in children between the ages of five and ten.

The skin rash, which occurs with rheumatic fever, is found more frequently with children between the third and tenth year of life. A drug allergy can occur naturally at any age. Shingles can also occur directly after a chickenpox infection. However, although the same symptoms occur in children, the progression is usually less severe than in adults.

Skin rash in children
Scarlet rash