This could be a couple of things:
Iron Deficiency
Yeast Infection (yes it can happen near and around your mouth, also candida can infect your saliva)
bacterial infection
severe eczema
wet rot (do you slobber a lot in your sleep? this is probably the cause)
I would recommend going to your dentist asap, unless the cracking appears elsewhere on your body too. He will probably prescribe a topical ointment to put on it.
This means the skin is really dry and needs to be dealt with.
Drink loads of water and use some special cream or something to rub into the dry skin parts.
I've read that a lack of vitamin B causes it. Try taking vitamin B and see if it gets better.
I tend to get cracks on the side of my mouth when i am stressed or run down.
It could be Iron Deficiency Anemia. That is a sign/symptom of that.
crack at the mouth tongue and lips due to the deficiency of vitamin B.
A person may get dry mouth from smoking crack. People also get dry mouth from smoking a lot of Marijuana.
It could just be chapped lips and/or dry skin. I wouldn't worry about it unless it's really bad.
I can't really explain it.
Crack.
Moisture
Yes. You can get one almost anywhere..bellybutton.. mouth..bum crack..
cheilosis: crack like sores at the corner of the mouth. (lip disease)
Traces of crack cocaine can typically be detected in a mouth swab sample for up to 1-2 days after use. However, this detection window can vary based on factors such as frequency of use, dosage, and individual metabolism. It is important to note that drug testing results can also be influenced by various factors such as hydration levels and sensitivity of the test.
What causes peppery mouth
Crack.
crack