Pimples are generally referred to as acne, and the white streaks that are squeezed out are usually formed by the accumulation of oil secreted by the sebaceous glands and bacteria and dander. You should avoid squeezing pimples on a daily basis and treat acne with topical and oral medications.
Under normal circumstances, the sebaceous glands will secrete oil, and the skin will come into contact with external bacteria, dust and other substances, and the skin metabolism will produce some metabolic wastes, which, if discharged obstruction, will be stagnant and form a white substance, which can appear as a white streak when squeezed. You should avoid scratching and squeezing the pimples in daily life, and the local area should be sterilized with iodophor in time after squeezing.
Adapalene gel, benzoyl peroxide, retinoic acid ointment, fusidic acid cream and other medications can be used externally as prescribed by the doctor, and minocycline, isotretinoin and other medications can be taken orally if necessary to improve the keratinization of follicular sebaceous gland ducts, reduce the inflammatory reaction, and promote the regression of acne lesions.
If you have acne on your face, you need to consult a doctor, use reasonable medication under the guidance of the doctor, and avoid squeezing yourself.