As long as there is an open wound, the most important thing is asepsis and keeping the wound clean so that it does not become infected. You must apply an antiseptic every 12 hours and practise extreme hygiene. If the wound looks bad, oozes, appears sweaty, you feel heat or palpitations, you should go to the doctor to assess the need to apply an antibiotic ointment. If the wound becomes infected, the healing gets complicated.

Yes. It is very important to protect them from the sun from thec first instance. Scar tissue, in addition to having a different texture and appearance to the surrounding tissue (due to the proliferation of fibroblasts and keratinocytes), is usually accompanied by a loss of pigment or the ability to produce melanin, making it much more sensitive to the action of UV rays. Without the necessary sun protection, scars are at high risk of fading, in which case they will be more noticeable. The scar can suffer loss of pigmentation temporarily or permanently. When this happens, the affected area has a lighter colour than the rest of the body, which also becomes an aesthetic problem.

They appear in areas where the dermis has been injured due to stretching during puberty. Stretch marks usually appear on the breasts, hips, thighs and buttocks of women, and on the shoulders, lumbar region and thighs of men.
 

Stretch marks that have recently formed (immature stretch marks) are areas of the skin with pink or reddish coloration. The colour is due to the blood vessels under the skin. These stretch marks have good blood flow and therefore are easier to treat: as time passes, they become whitish, flat and depressed. Blood vessels narrow, making it difficult for collagen to be produced. Mature stretch marks have the appearance of wrinkled skin and are known as Alban stretch marks * Maari C et al, 2003.