Suggest Treatment For Swollen Tonsils

For the last 2 months I have have 4 seperate rounds of Amoxicillin for swollen tonsils with pus pockets on them. I was given a step test and it was negative. I finally went to another doctor and he said it was allergies so he gave me a steroid nasal spray and told me to buy Zyrtec OTC and give it a week, if that didn't work he wrote me a prescription for a Z-Pack. It has been a week and my throat hurts everytime I swallow as well as having little pus pockets appearing again, and red almost bleeding spots on my tonsils with an aggravating cough sometimes at night. At this point I will try the Z-Pack but all I would really like is an answer as to why my throat always hurts and how to prevent it in the future. I am a new mother with a 7 month old who has been ill with ear aches for the last few weeks and haven't had very much sleep the last 2-3 weeks so maybe that is a factor in my healing, but otherwise my husband and I eat very healthy foods, and take vitamins everyday. The only thing I need more of is exercise but the last 2 months I haven't felt like doing a thing I am tired all the time. At this point I am desperate for answers. Please help.