Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concern... As per your complain and presentation of symptoms cracks on the tongue can be due to a condition known as Fissured Tongue and it is commonly genetic in origin.. Maintaining a good oral hygiene and keeping the grooves over the tongue clean by using a soft toothbrush to clean it as well as gargle with warm saline water can maintain a normal infection free oral and tongue health.. As you are experiencing irritated tongue it is a sign of inflammation known as GLOSSITIS and the red and purplish margins of gums are due to infection and inflammation of gums known as Gingivitis.. Nothing to worry, consult an Oral Physician and get evaluated and he can advise you to take a multivitamin tablet daily.. Gargle with a numbing mouthwash containing Lignocaine for relief from irritation. Suck ice pops and gargle with cold water to reduce irritation. Maintain a good oral hygiene.. Avoid hot and spicy foods.. Drink plenty of water.. For inflamed gums Scaling followed by antibiotics and topical application of gum paint and gargle with antimicrobial mouthwash will help.. Hope this information helps.. Thanks and regards.. Dr.Honey Nandwani Arora. Other thing is that