Can I use Manuka honey on my skin?

In short yes.
Manuka honey can also be used as follows:

• For the symptomatic relief of minor wounds, burns, eczema, psoriasis on the skin and cold sores.
• For the treatment of minor skin disorders including wounds, scratches, bruising, cuts and abrasions.
• May also assist in the management of scar reduction, dermatitis and minor burns, including sunburn.