What causes yellow finger tips and a blister the has no fluid in it?

Yellow fingertips can be caused by various factors, including smoking, certain medications, or dietary habits, such as high intake of turmeric or carotene-rich foods. A blister without fluid may indicate a friction blister or a reaction to irritants, which can occur from repeated pressure or contact with rough surfaces. If these symptoms persist or worsen, it's advisable to consult a healthcare professional for an accurate diagnosis and appropriate treatment.