Welcome to HealthcareMagic. The tissue which has been damaged after trauma will eventually grow back. Apply warm compresses and some topical antiseptics. Also wear loose-fitting cotton clothing and use an antibacterial soap or mild soap like dove. You can also apply topical antibiotic
creams like Neosporin
. However if the symptoms persist then oral anti inflammatory drugs may be needed. You have to consult your dermatologist
Hope it helps you. Regards.