Raynaud's syndrome is a condition that reduces blood flow to the fingers and toes, causing them to turn pale and lose feeling, often triggered by cold temperatures.
Longchambon shared a photo of her affected fingertips on Instagram, prompting many followers to share similar experiences and ask for advice.
She described the condition as not dangerous, though it can be painful when blood returns, and offered tips such as keeping warm, wearing gloves, consuming ginger, and moving fingers.
The NHS confirms Raynaud's is common and usually not severe, advising self-treatment by staying warm, though it can occasionally indicate a more serious underlying condition.