If Kamagra Gold 100 mg contains sildenafil 100 mg, flushing is a common side effect of sildenafil. Why it happens Sildenafil relaxes blood vessels by increasing the effects of nitric oxide/cGMP. This helps blood flow to the penis, but it can also widen blood vessels in the skin. Increased blood flow near the skin causes facial warmth, redness, or a flushed feeling. The 100 mg dose can make flushing more noticeable  Kamagra Gold 100 mg lower doses such as 25–50 mg. What you can do Flushing is usually mild and temporary and often improves as the medicine wears off. Avoid large amounts of alcohol, which can worsen flushing and dizziness. Don't take another sildenafil-containing medicine at the same time. If flushing is severe, persistent, or accompanied by chest pain, fainting, severe dizziness, difficulty breathing, or swelling, seek medical attention. If you frequently get strong flushing with Kamagra Gold 100 mg, a clinician may consider whether a lower sildenafil dose would be adequate for you.