Vaseline can be applied inside the nose.
Vaseline has the effect of repairing the skin, relieving dry skin and moisturizing the skin, and can be used on the nose to lubricate the nasal passages, preventing them from drying out, and will also form a physical protective film inside the nasal passages, which tends to bleed when the weather is dry, and Vaseline has the ability to protect the mucous membranes, improve chaffing, and can help to stop the bleeding in the nasal passages.
Vaseline applied to the nostrils is actually common in clinical practice, but the Vaseline used medically is decontaminated. The gauze that is used to fill in a nose bleed is the one that contains Vaseline, but of course Vaseline should still be used only if it is emphasized that it is for medical use and has been sterilized.
It should be noted that Vaseline should be used under the supervision of a physician and is contraindicated in cases of allergy.