Respected user, hi I evaluated your query thoroughly.
*Symptoms are related to 
Penicillin allergy causing urinary infection.
*He will be fine with certain simple measures :
- give plenty of liquids preferably boiled water, coconut water, green tea, 
  coffee  home made juices, rice water, lemon juice , butter milk  etc.
- avoid oily /spicy / nonveg stuffs
- avoid 
smoking / alcohol / abuse substances if used any
- Cranberry sachets or liquid give early satisfying results
- continue your current medicines
- can consult later doctor if at all needed for evaluation
 Hope this clears your query.
 Thanks for using Health Care Magic & reviewing my answer thoroughly.
 Wishing him fast and speedy recovery from the same.
  Regards dear take care.