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Aug
How Long Does Drug Reaction Rash Last. Usually the rash disappears from the top of the body first and the legs and feet last. About 10 percent of children experience rash from amoxicillin. A rash can last 1-6 days depending on the severity. DRESS is a rare type of drug rash that can be life-threatening.
Other reactions particularly rashes can occur hours days or weeks later. Toxic epidermal necrolysis can be life-threatening in up to half the cases. Fixed drug eruptions can take days to weeks as can ery. The rash will likely clear up without complications in two to three weeks as long as the person is not re-exposed to the allergen. Who are at risk. Medications that stay in the body for a few days could cause longe.
Some patients have their rash for more than six days.
Generally hives will resolve faster than some of the other allergic rashes. Usually the rash disappears from the top of the body first and the legs and feet last. Toxic epidermal necrolysis can be life-threatening in up to half the cases. The rash usually disappears once you stop taking the drug. A rash can last 1-6 days depending on the severity. DRESS is a rare type of drug rash that can be life-threatening.