The corneal layer prevents drying out and to some extent protects from bacterial invasion. Determination of burn depth can be difficult. As the burn gets deeper, the pink surface changes to a dry white reticulated surface. Pin prick is less sensitive. Sometimes it takes several days before it is obvious that a burn is superficial.
Experience is helpful.
Therapy Silver sulphurdiazine is the main agent used. The rationale is that by controlling local infection we will prevent systemic infection. Antibiotics given systematically have limited use as they cannot get to the injured site. Topical SSD and bulky dressings which are changed daily are the main methods of local wound care. Daily baths help in the process debridement.