The redness of acne marks is considered to be a normal phenomenon, an infection, or a reaction to the use of glucocorticoids.
1. Normal phenomenon: some of the more serious acne will have acne marks after healing, which may be caused by local capillary proliferation and expansion of the red acne marks.
2. Infection: In the process of acne treatment, if you do not pay attention to personal hygiene or use your hands to squeeze, acne lesions will expand locally, which will show symptoms of infection such as redness, swelling, heat and pain, and some of them will also have abscesses.
3. Reactions to glucocorticoid use: If the acne is particularly severe, such as polymerized acne and eruptive acne, you can inject glucocorticoid into the lesions, and the adverse reaction of glucocorticoid is that it is prone to hyperpigmentation, which causes redness of the acne.
Acne redness does not return may be other reasons, it is recommended to go to the regular hospital in a timely manner to consult the doctor, after clarifying the cause of standardized treatment.