Hi My Husband Has A Large Abscess On His Bottom.

Hi my husband has a large abscess on his bottom. He was prescribed antibiotics- we had to call the emergency doctor out who managed to burst it! He was in extreme pain with this for two weeks before Christmas 2015. He has just noticed a lump again in the same place and went to the doctors who have prescribed antibiotics yet again-I am most concerned as we are due to go on holiday to Lanzarote in 2 weeks time?