A small rice-sized pimple on the mouth requires careful observation of the appearance of such pimples. If they are densely arranged on the lip area, with no obvious conscious symptoms, white in appearance, and mildly raised to the touch, consider the possibility of simple glandular labyrinthitis, which is a condition of sebum accumulation in the area, resulting in abnormalities later, without pain or itching, and if you want to remove them, you can apply tacrolimus ointment or pimecrolimus ointment. If you’re looking for a new way to get the most out of your home, you’ll be able to get the most out of it. If the top of the small particles are keratinized and densely arranged, it may be a simple skin keratinization, you can apply topical compound salicylic acid cream or hyaluronic acid gel to improve the effect.