Final answer:
The best treatment for a burn with redness and pain but no blisters is to cleanse with mild soap and water and apply cold packs for 24-48 hours. Additional measures like applying a bandage and possibly using a topical antibiotic can be considered based on infection risk.
Step-by-step explanation:
The best treatment option for a burn on the neck from a curling iron that is red and painful but has no evidence of blisters is to cleanse with mild soap and water and use cold packs for 24-48 hours. This initial care is aimed at soothing the area and preventing further injury or infection. Covering the burn with a bandage may be appropriate to protect it from friction and contamination, but care should be taken not to occlude the area too tightly. The use of a topical antibiotic may also be considered if there is a high risk of infection, but it is not the primary treatment in this scenario without signs of infection, such as pus or increased redness, swelling, or pain. Systemic antibiotics, such as penicillin or azithromycin, are not indicated for burns without evidence of a significant infection. Upon examination, if the healthcare professional observes signs suggestive of a bacterial infection, then a topical or systemic antibiotic might be warranted.