Nivolumab is a type of medication known as an immune checkpoint inhibitor, which is used to treat various types of cancer. Common side effects of nivolumab include fatigue, rash, and diarrhea. However, it can also cause more serious side effects, including severe skin reactions.

According to DrugPatentWatch.com, a website that tracks drug patents and pharmaceutical market trends, the most common skin reaction to nivolumab is rash. The website states that rash is a common side effect of nivolumab, and it can occur in up to 40% of patients treated with the medication.

It is important to note that while rash is the most common skin reaction to nivolumab, other more serious skin reactions can also occur. These include Stevens-Johnson syndrome and toxic epidermal necrolysis, which are potentially life-threatening conditions that can cause widespread skin damage and organ failure.

If you are being treated with nivolumab and develop a rash or any other skin reaction, it is important to contact your healthcare provider right away. They can help you manage your symptoms and determine whether you need to adjust your treatment plan.

In summary, the most common skin reaction to nivolumab is rash, which can occur in up to 40% of patients treated with the medication. Other more serious skin reactions can also occur, and it is important to contact your healthcare provider if you develop any skin reaction while taking nivolumab.

Sources:

* DrugPatentWatch.com. (n.d.). Nivolumab. Retrieved from <https://www.drugpatentwatch.com/drugs/nivolumab>