The symptoms you describe are most consistent with hormonal acne, which commonly worsens before periods due to cyclical changes in estrogen and progesterone. These hormonal shifts increase oil (sebum) production and lead to clogged pores, especially in oil‑prone areas like the forehead (T‑zone). This is a common, non‑dangerous condition, but it can persist if not managed properly. A safe approach includes maintaining gentle skin hygiene by washing the face twice daily with a mild cleanser, avoiding oily or comedogenic skincare or hair products, keeping hair off the forehead, and not picking or squeezing lesions to prevent scarring. Over‑the‑counter options such as salicylic acid or benzoyl peroxide products may help reduce clogged pores and inflammation if tolerated. If the acne is recurrent, painful, or leaving marks, a dermatologist evaluation is recommended, as prescription topical or hormonal treatments may be needed to control it better.