I snorted drugs once and now i keep getting bloody noses. when will this go away?

Bloody nose: Snorting drugs can certainly cause nose bleeds. Essentially this is due to direct trauma and drug effect to the delicate lining tissues of the nose. Some drugs are more hazardous than others. Depending on what you snorted, you may have a significant problem that requires treatment. Best to see an ENT specialist look in your nose to determine if it is serious or not. Can also get treatment.