The treatment for a lump on the nostril largely depends on the underlying cause of the lump. If the lump is due to a common pimple or acne, topical treatments containing benzoyl peroxide or salicylic acid can be used to reduce inflammation and clear the blockage. In more severe cases, a dermatologist may prescribe oral or topical antibiotics or retinoids. For lumps caused by a furuncle or carbuncle (a type of skin abscess), warm compresses can help to reduce pain and encourage the abscess to drain. If this doesn't work, a healthcare provider may need to drain the abscess surgically. Antibiotics may also be prescribed if there's an associated bacterial infection. If the lump is a nasal polyp, treatment options range from nasal corticosteroid sprays to reduce inflammation and size of the polyp, to oral or injectable corticosteroids in case of larger polyps. If medication doesn't work, endoscopic surgery may be needed to remove the polyps and improve breathing. In the case of a cyst, treatment might involve surgical excision, particularly if the cyst is causing discomfort or cosmetic concerns. This is usually a simple procedure that can be done under local anesthesia. If the lump is due to a malignant growth or cancer, treatment could involve surgery, radiation therapy, chemotherapy, or a combination of these. The specific treatment would depend on the type, size, and location of the cancer, as well as the patient's overall health. In some cases, the lump may be due to a foreign body lodged in the nostril, particularly in children. In this case, it's important to have a healthcare provider remove the object to avoid further complications. It's important to seek medical evaluation for any persistent or concerning lump on the nostril. The healthcare provider can determine the cause and appropriate treatment plan. It's also important to remember that while some lumps can be treated at home, others may require medical intervention, and attempting to self-treat could potentially lead to complications.