What do you suggest if i have angular chelitis, what should i do?

Multivitamins: It may be due to nutritional deficiency. Try taking over the counter multivitamins. If that does not resolve the issue in 2-3 weeks, it would be prudent to see a dermatologist. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.