Causes of large bumps inside the eyebrows include folliculitis, cystic acne, pityriasis versicolor, lipoma, etc. Treatment includes medication and surgery. 1. Folliculitis: If the folliculitis is caused by bacterial infection, metronidazole cream can be given to apply anti-bacterial treatment. 2. Cystic acne: If it is cystic acne, 0.1% adapalene gel can be given to apply anti-acne treatment. 3. Pustular ringworm: In the case of pustular ringworm, ketoconazole cream can be given as an antifungal treatment. If necessary, oral medication can be given. 4. Lipoma: For patients with lipoma, surgical treatment such as lipomectomy can be given. Finally, the phenomenon of large bumps inside the eyebrows, please consult a doctor in time, the above drugs must be used in accordance with medical advice.