Can i treat a red rash under the armpits myself?

Cause: Rash is a symptom like fever. You need to treat the cause of the rash. If you do not know what is causing the rash, it would be prudent to consult a doctor. It is not feasible to provide a meaningful opinion without examining you. 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.