Could be ringworm, a fungal infection in which the 'sores' are a rash in the form of a circle, red inside, and whitish-grey around the ring. Some people have said that ringworm sores look like cigarette burns.
Did you have an outdoor job? Have you spent a lot of time in the sun? If so, you had better see a doctor about those painful sores so he can rule out melanoma.
Sores on the back and neck that resemble cigarette burns may be caused by skin conditions such as contact dermatitis (from an irritant or allergen), folliculitis (infection of hair follicles), or herpes simplex (viral infection). It's important to see a healthcare provider for proper diagnosis and treatment, as these conditions may require different approaches for management.
Sores everywhere and it looks like bubbles
I'm sure there are a number of possibilities, but the two that immediately spring to mind are ringworm and impetigo. For your sake I seriously hope it's not impetigo, as it is a highly contagious and truly disgusting disease. Despite the name, ringworm is not a parasitic worm, but a fungal infection.
Unless you have an allergy to the cigarette ingredients, there is probably no cause and effect here. Stop smoking and see how you do.
If the sores are located on the belly, then it is likely that you puppy was just neutered. No need to panic, if the sores begin to bleed make an appointment with your vet to have them restitched. If the sores are located elsewhere and you notice your puppy scratching or gnawing, he/she may have allergies. A vet can diagnose the specific allergy and suggest treatment.
If you mean that you have a rash on your abdomen that looks like cold sores, it could be shingles. See your health care provider for a diagnosis.
it is probably herpes...you should get it checked out
"Cold sores" have nothing to do with colds. They're caused by the herpes virus. Assuming that you don't have herpes, what you've probably got is a canker sore, which looks similar but has different causes (and also has nothing to do with colds).
You can use chickweed to make a type of salve that is helpful if you have acne, boils, burns or tumors. Some other uses for chickweed salve is to cure rashes and sores.
Used for leg ulcers, minor burns, pressure sores and traumatic injuries, these self-adhesive dressings form a gel as they absorb fluid from the wound.