Leps burned by sun, wound does not heal due to saliva. Suggestions?

Burn medication. Please consult your physician for an Rx for specific burn medication. You can try a very thin ( pea sized drop) of OTC antibiotic ointment until Rx is called in.
Sun burned lips. Usually sunburned lips heal on there own. You can use an over the counter ointment like bacitracin on your lips. Aloe works well. Any moisturizer that does not contain alcohols,perfumes, or dyes may help.