Take antibiotics for 7 days . Check on lymph node size and number .

As you are having infection and bilateral inguinal lymphadenopathy you need to take antibiotics for few days and treatment for anal fissure and if possible get yourself examined by a doctor , after proper treatment look for the size of lymph nodes then only any further investigation to be done

For the anal fissure - *Take a stool softener/laxative as advised to keep the stools soft. * Apply local lignocaine ointment before passing stools to reduce pain. * Take a sitz bath 2–3 times a day: sit in a basin or tub containing warm water for about 10–15 minutes each time for 5 days. To prevent recurrence: * Follow a high-fibre diet, including plenty of fruits, vegetables, and green leafy vegetables. * Drink 3–3.5 litres of water daily (unless you have been advised to restrict fluids for another medical condition). * Include curd/yogurt in your daily diet, as it may help maintain healthy bowel habits. * Avoid straining during bowel movements and try not to delay the urge to pass stools.

Anal fissure is a crack in the skin of anal region which occur due to straining while passing stool usually hard stool and stress and anxiety contribute to straining and constipation,Which further aggravate the condition. Do some physical exercise and yoga(will relieve stres and anxiety),eat high fibre diet ,do Sitz bath ,if does not get relived ,consult general surgeon

Ok so you basically need to be treated for anal fissure and go for hot sitz bath , to know full treatment you can consult for general surgeon here