What could be wrong if your 2-year-old has small red raised non-itching rash-pimples scattered on his arms legs hands feet and he finished a fever week ago after having virus for 4-5 days?

It is important to consult with a doctor to accurately diagnose and treat your child's condition. The presence of a rash along with a recent fever can indicate various possible causes. Here are a few potential reasons for the rash:

1. Viral Exanthem: Some viral infections may cause a rash as part of their symptoms. If your child has recently recovered from a viral illness, it is possible that the rash is a manifestation of the virus. Common viral exanthems that can cause red raised rashes include measles, rubella, hand, foot and mouth disease, and roseola infantum.

2. Allergic Reaction: A non-itching rash could also be a sign of an allergic reaction. If your child was exposed to any new foods, medications, or other allergens around the time the rash appeared, it could be an allergic response.

3. Bacterial Infection: In some cases, a rash can be a symptom of a bacterial infection, especially if it is accompanied by other signs such as fever, irritability, or changes in behavior.

4. Skin Condition: There are various skin conditions that can cause red raised non-itching rashes, such as eczema, psoriasis, and dermatitis.

Since the rash appeared after your child's fever, it is essential to have a healthcare professional evaluate the cause of the rash to ensure appropriate treatment and monitoring. The doctor can conduct a physical examination and may recommend further tests, such as a blood test or a skin biopsy, if necessary.